Working Paper  
May 1998
A Research Framework for Evaluating Jobs-Plus
A Saturation and Place-Based Employment Initiative for Public Housing Residents

James A. Riccio

I. Introduction: The Goals and Rationale of Jobs-Plus

Jobs-Plus is a new way for large numbers of people who live in public housing to get and keep jobs, making their communities better places to live. It is being launched as a research demonstration project in seven cities, where its success will be carefully studied along a variety of dimensions. The cities are: Baltimore, Chattanooga, Cleveland, Dayton, Los Angeles (two developments), St. Paul, and Seattle.

The public housing developments selected for the project are places where work is rare and welfare receipt widespread. Jobs Plus will attempt to increase work dramatically by providing all working-age residents with state-of-the art employment and training services, financial incentives, and social supports for work. It will strive to help those not working enter work, those working inconsistently work more consistently, and those with low-paying jobs move on to better-paying jobs and climb a career ladder. Through this focus on work, Jobs-Plus will address important issues concerning community revitalization, the future of public housing, and welfare reform, thus promising to make the lessons from the demonstration broadly relevant.

The main purpose of this paper is to provide an overview of the demonstration’s comprehensive research agenda. It turns to that task after taking a closer look at the main objectives and rationale of Jobs-Plus and how it will attempt to achieve its ambitious goals.

Community revitalization. In its broadest formulation, Jobs-Plus represents a new attempt at achieving a long-standing though elusive objective of urban public policy: creating mixed-income urban communities in which most working-age residents are employed, and doing so without displacing poor people. It is widely accepted that such communities offer poor families a better quality of life and better future prospects than do communities with very high concentrations of non-working poor people. Consequently, many believe that increasing work among residents is key to revitalizing inner-city communities, an idea advanced most prominently in recent years by William Julius Wilson (for example, in his 1996 book, When Work Disappears). Jobs-Plus is premised on this theory and, as such, it offers a rare opportunity to test whether whole neighborhoods can indeed be transformed through a work-focused initiative.

The most immediate program objective is to transform the lives of residents of public housing. However, because public housing complexes occupy a central and often defining role in many urban neighborhoods — all too often serving as a social and economic drag on those communities — it is hoped that positive changes within the developments will eventually have spillover effects, leading to improvements in the surrounding neighborhoods as well.

Public housing reform. Increasing and sustaining employment among public housing residents may be critically important not only for making public housing communities better places in which to live, but also for ensuring the future viability of public housing as a source of decent and affordable housing for low-income families.

Nationally, almost half of public housing recipients rely on some form of cash welfare benefits as their primary source of income. New restrictions on access to these benefits, owing to recent federal and state welfare reform legislation, may lower many residents’ ability to pay rent. At the same time, shrinking federal operating subsidies to local public housing authorities (PHAs) will make it harder for them to fill that budget gap. The resulting financial strain could threaten PHAs’ very solvency, making it imperative for residents to increase their incomes through work.

Increasing residents’ employment and earnings may also help more of them "climb the housing ladder" toward better, unsubsidized rental housing, or even home ownership. (For most people, steady employment and regular earnings are prerequisites for home ownership.) A rise in this "positive" turnover would then allow the government, over time, to extend public housing assistance to a greater share of the eligible low-income population, even if the supply of public housing remained constant.

It is also possible that the public’s willingness to continue supporting public housing may increasingly depend on boosting residents’ efforts to work. That would mirror a factor shaping important welfare and Food Stamp reforms, which in recent years have toughened the obligation of recipients to seek or prepare for work as a condition of receiving full benefits.

Welfare reform. The Jobs-Plus housing developments are likely to include a disproportionate share of longer-term welfare recipients who presumably are among the more difficult-to-serve portion of the welfare caseload. Consequently, the program’s success in moving them into work should be as much of a concern to welfare administrators as it is to public housing administrators. Jobs-Plus offers an opportunity to test a new set of strategies for responding to many of the challenges posed by the dramatic welfare changes now underway across the nation.

The program design for Jobs-Plus will build on the lessons learned from the most successful welfare-to-work programs of the past, but also address many of their shortcomings in the hope of achieving much greater success. Many of the same strategies it uses may also be suitable for welfare-to-work initiatives outside of public housing, making it important to learn as much as possible about their feasibility and effectiveness in Jobs-Plus.

II. The Jobs-Plus Approach

Jobs-Plus is distinctive in the way that it builds on but also moves beyond past self-sufficiency initiatives. (See the box below for a summary of the program’s key features.) First, the program adopts "community-building" principles common to a growing number of comprehensive neighborhood improvement initiatives. These include the principles of local control, collaborative decision-making, resident empowerment, and building on residents’ pre-existing social assets. The demonstration thus places the burden of detailed program design and implementation squarely and collectively on the shoulders of those who should have the biggest stake in the success of the program — the public agencies that serve public housing residents (especially the PHA, the welfare department, and employment and training agencies) and the residents themselves. They are to build local partnerships — or "collaboratives" — for Jobs-Plus.

One important rationale for local collaboration is the assumption that no single entity can accomplish by itself the profound changes that Jobs-Plus aspires to achieve. The problems have no single cause and no single solution, so agencies and residents must pool their knowledge, resources, and energies in order to be most effective. A high premium is placed on resident involvement in these collaboratives. The logic here is that in order to build a program that enjoys widespread resident support and "buy-in," residents’ own perspectives on what will work in their community must be understood and given great weight in deliberations over program design. It is also assumed that, if the program works, it has a much greater chance of being sustained and institutionalized as part of ongoing policy if a broad set of local institutions themselves come to feel a sense of mutual ownership over and stake in the program’s long-term viability.

Of course, partnerships like this, which require agencies that do not normally work together to begin doing so in intimate ways and share decision-making power with residents, do not just happen — and do not happen quickly. Recognizing this, MDRC and other outside experts are providing intensive technical assistance to the local collaboratives to help them build strong partnerships. In part, this assistance aims to help residents strengthen their capacity to contribute to program design and implementation decisions and to exercise influence within the collaboratives. It also aims to help the agency partners become supportive of and receptive to that empowerment of residents, guide the agencies in instituting changes in their own practices on behalf of Jobs-Plus, and help the full group of partners design an intervention that builds productively on social assets that already exist among residents.

A second distinctive aspect of Jobs-Plus is its plan to integrate state-of-the-art employment-related services with financial work incentives that "make work pay." It will add to this mix a "community support for work" component that aims to strengthen and expand the social capital on which residents can draw to support their efforts to prepare for, find, and keep jobs. Previous research from welfare-to-work programs suggests that neither services nor incentives alone could reasonably be expected to enable sites to increase employment and earnings dramatically. It is possible, however, that successful simultaneous implementation of services and incentives, in combination with new forms of social support, might create a synergy among the three strategies, with effects that far exceed the impacts of even the best-performing programs of the past. That, at least, is a central theory of Jobs-Plus.

A third distinctive aspect of Jobs-Plus is its neighborhood focus and scale. Unlike past welfare-to-work and job training programs, Jobs-Plus is a "place-based, saturation-level" initiative. It will attempt to provide innovative services, incentives, and supports to all working-age residents living in the targeted housing development, with the explicit goal of transforming those locations from "low work/high welfare" communities into "high work/low welfare" communities.

III. Evaluation Strategies

The distinctive features of Jobs-Plus offer an unusual opportunity to learn about the challenges and payoff of concentrating an innovative, multi-component, saturation employment initiative in delimited geographic areas with high concentration of welfare recipients. The demonstration thus includes a comprehensive evaluation of the program.

The evaluation will assess the program’s feasibility, effectiveness, economic costs and benefits, and implications for best practices. In contrast to other evaluations of comprehensive community initiatives — which are usually single-site studies without the benefit of comparison groups — this study will have multiple sites with randomly selected comparison groups in each of them. Within each of the seven demonstration cities, several housing developments that were reasonably well-matched on demographic and other criteria were identified as being potential candidates for hosting Jobs-Plus. One of these developments was then randomly selected to be the Jobs-Plus development, and one or two were randomly chosen to be comparison sites. Across the demonstration cities, then, the evaluation takes the form of a social experiment with relatively comparable treatment and control groups.

This design was adopted as an alternative to a traditional social experiment in which individuals are randomly assigned. Such a strategy was precluded by the place-based and "saturation" aspects of the Jobs-Plus treatment. The fact that the program will attempt to assist all working-age residents in each city’s Jobs-Plus housing development rules out the option of randomly assigning some residents in the same development to a control group that would remain "untouched" by Jobs-Plus. The same kind of constraint has been a major impediment to determining reliably the effectiveness of other comprehensive community initiatives.

Table 1 shows the Jobs-Plus developments, their size, and some characteristics of their residents. Particularly noteworthy is the substantial degree of ethnic and racial diversity across the demonstration sites. This is important because many high-poverty housing developments and neighborhoods throughout the country are themselves racial and ethnic enclaves. The opportunity to test Jobs-Plus in such a variety of settings thus enhances the policy relevance of demonstration.

Appendix Table 1 compares the Jobs-Plus and comparison developments. It shows that within each city the background characteristics of the residents living in the Jobs-Plus development are similar to those of residents living in the comparison developments (although the match is not perfect). This will strengthen those parts of the evaluation in which interim and longer-term outcomes will be compared across these two sets of developments.

The evaluation will include implementation, impact, and benefit-cost studies. The implementation study will examine what it takes to build and operate effective collaborations and the kind of complex program treatment envisioned for the demonstration. In addition, it will attempt to understand the underlying theories or hypotheses guiding the choices each site makes in specifying its Jobs-Plus intervention. It will also examine the sites’ overall success in operationalizing the central elements of the basic Jobs-Plus model. If that implementation success varies across the sites, the study will try to explain why it varies. The implementation study will use data from several sources. Most important will be information collected through intensive field research at each of the treatment and comparison developments, surveys of residents in those developments (which will also be used for the impact analysis), and various city, housing authority, and other agency records and documents.

The impact study will determine the effectiveness of Jobs-Plus in increasing residents’ employment and earnings, reducing their use of welfare, and improving their personal and family well-being and quality of life. At the core of this study will be a comparative interrupted time-series analysis involving working-age residents in roughly 8,000 households (in the treatment and comparison developments combined). Applying this technique, trends in employment, earnings, welfare receipt and Food Stamp receipt will be measured for the Jobs-Plus and comparison developments using administrative records. These trends will be examined for a period beginning five years before the start of Jobs-Plus and continuing for five years afterward. If, for example, residents’ employment after Jobs-Plus deviates sharply from their historical trend in a positive direction, and do so to a markedly greater extent than residents in the comparison developments deviate from their own historical trend, this will lend credibility to a conclusion that Jobs-Plus — and not other factors — caused the increase in employment. The same logic would apply in analyzing trends in other outcomes. (For a detailed discussion of the impact research design, see Bloom, 1996.)

The impact study (like the implementation analysis) will also use data collected from "before-after" surveys of a subsample of residents in the treatment and comparison developments. The surveys will collect information on a wide variety of topics not only to help gauge and explain the sites’ success (or failure) in implementing Jobs-Plus, but also to help assess the program’s effects on various employment, welfare, and quality-of-life outcomes. Other data, such as neighborhood indicators (e.g., local crime statistics) may also be used in the impact (and implementation) study.

The benefit-cost study will estimate the cost of operating Jobs-Plus and analyze the net economic gain or loss created by the program from the several different perspectives. For example, it will examine the net gain or loss from the vantage point of public housing residents, government budgets and taxpayers, specific agency budgets, and society at large. The benefit-cost study will make use of data from a variety of sources, including the information collected for the implementation and impact studies and government expenditure data.

Overall, the Jobs-Plus demonstration’s combination of randomly selected treatment and comparison sites, long-term trend data, before-after survey data, and comprehensive qualitative information will provide an unusually powerful foundation for addressing important theoretical and policy questions that are relevant even beyond the world of public housing. The next few sections discuss these questions and hypotheses in more detail.

IV. Evaluating the Implementation Success of Jobs-Plus

Jobs-Plus presents a number of extraordinary implementation challenges, especially in creating collaborations, delivering a bold new program treatment that differs profoundly in scale and content from the services, incentives, and supports normally available to public housing residents, and in fostering enduring institutional change within the demonstration cities. The implementation study will therefore examine how well the sites meet these challenges. Diagram 1 illustrates the categories of variables and the anticipated relationships between them that this part of the evaluation will study. Attention here will focus largely on tests of hypotheses in three main areas, as described below.

A. Testing the feasibility and robustness of inter-agency and resident partnerships

Hypothesis: True and effective inter-agency and resident partnerships can be established across very diverse settings and resident populations

Many other "comprehensive community initiatives" involve inter-agency collaboration at the local level. However, Jobs-Plus is unusual in bringing together agency representatives and residents (a rare combination in itself) for the explicit purpose of achieving employment goals. The agencies involved already serve public housing residents in some capacity, but separately, and for different purposes. Never before in these communities have they all been included as joint stakeholders in a place-based, employment-focused initiative. Together they are entering uncharted waters.

The expectation that a collaborative approach, though difficult, is broadly feasible is based on several assumptions. One is a belief that although different agencies serve public housing residents for different purposes, welfare reform and budget constraints push them in a common direction toward the goal of increasing self-sufficiency among the people they serve. In other words, each agency’s success in achieving its own institutional mission may be enhanced by the extent to which residents’ employment and earnings are raised. Thus, the agencies should have a mutual stake in success of Jobs-Plus as a potential vehicle for achieving critical employment objectives they are coming to share for their overlapping caseloads. Working together on this project may allow them to pool their strengths and avoid individual agency actions that work at cross-purposes.

Another assumption behind the expected feasibility of the collaborative model is that all agency partners will welcome the special contributions that residents themselves can make as partners in designing and managing an intervention that seeks to transform their lives and communities. Finally, the demonstration’s provisions for technical assistance to help the sites forge strong partnerships may also contribute to the collaboratives’ success.

Still, the challenge facing the local collaboratives is profound, and their ability to evolve into true and effective partnerships is by no means assured. Furthermore, the magnitude of the challenge may vary tremendously across demonstration sites, which not only serve very different types of public housing populations, as noted above, but which also have different institutional and political histories on which to build. In some cities, for example, the partners have been part of earlier joint enterprises for other purposes, while in other cities the partners have little shared experience on which to draw. Thus, the most important question about the collaborative approach is not whether it can be fully achieved in any of the demonstration cities, but whether it can be achieved in most of them. In other words, is it broadly feasible, or "robust"?

In addressing this question, the evaluation will need to define and measure the concept of "true and effective collaboration" and the pre-existing conditions that, theoretically, could affect the sites’ success in achieving that goal. Many of these conditions would fall within the areas listed on the far left column of Diagram 1. If the evaluation finds that true partnerships emerge across the sites despite the vast differences in local circumstances and populations, that will be taken as partial support for the hypothesis that the collaborative model is broadly feasible. If success varies, the analysis will examine what conditions appear to facilitate or impede success. In doing so, it will assess, through cross-site comparisons and in-depth analysis, whether differences in some of the specific conditions listed in Diagram 1 (e.g., pre-existing institutional relationships, local context, role of the external change agents — MDRC and other national and local technical assistance providers) help explain the variation in successful collaboration. In addition, it will attempt to understand the processes or practices of collaborating adopted at each site (e.g., governance structures created for Jobs-Plus, the frequency of meetings and how they are conducted, the roles assigned to various members of the collaborative and how they execute those responsibilities, and the emergence of strong internal leadership and change agents within the collaboratives) influence the success of building strong and effective partnerships.

Other major work-focused neighborhood revitalization efforts are likely to require similar kinds of partnerships. Consequently, determining whether or not the collaborative model can work across very diverse settings and populations, and learning what it takes to achieve real collaboration, may shed light on how to promote and foster a similar approach to program design and management in other welfare reform and inner-city revitalization initiatives.

B. Testing the feasibility and operational robustness of the Jobs-Plus program design

Hypothesis: The key programmatic features of Jobs-Plus can be successfully implemented across diverse settings and for different types of people.

At the programmatic level, sites can be judged as having succeeded in implementing Jobs-Plus if they are able to: (1) ensure that all working age residents have access to the program’s services, incentives, and community support for work (in keeping with the goal of "saturation"), (2) ensure that those three components are implemented in ways that are mutually reinforcing and well-coordinated, (3) ensure that, overall, the services, incentives, and supports, and the levels at which they are made available, amount to a "treatment" that differs very substantially from what is normally available (as indicated by what is available to residents in the comparison developments), and (4) actually engage residents in work-promoting activities and work experience opportunities at substantially higher levels than normally occur (again, as indicated by the experiences of residents in the comparison developments). The evaluation will therefore assess how well the sites’ programs meet these criteria.

Achieving all of these implementation goals will be a tremendous challenge. Although the size of the program in each site will be small relative to city- or county-wide welfare-to-work initiatives, it will be vastly more complex because of the multi-pronged nature of the intervention, its emphasis on saturation, and its targeting of a diverse and reputedly difficult-to-serve population. Some sites, of course, may perform much better than others. For example, in some sites, pre-existing employment and training services or social support networks or other forms of social capital (e.g., a tradition of volunteerism in the developments or strong resident organizations) may offer a ready foundation on which to construct new activities and expanded community support for work in Jobs-Plus; in other sites, these conditions may exist in much more rudimentary forms. (See Diagram 1.) Also, differences in residents’ pre-existing employment barriers and assets (e.g. , their existing education and skill levels and attitudes toward work and welfare) and their past experiences with training programs may affect how they initially react to Jobs-Plus — for example, whether they view the program’s services and financial incentives cynically or enthusiastically.

The substantial racial and ethnic diversity across the sites may be associated with the variation in some pre-existing conditions that may affect the implementation of the program. For example, in some sites, pre-existing social networks among residents may be strong within but not across different racial and ethnic groups. In general, it will be important to examine the differences in social networks, cultural patterns, vulnerability to discrimination, and other conditions associated with racial and ethnic identity and to assess whether and how these "matter" for engaging different groups in the program. The findings might also suggest how program strategies might need to be adapted in order to accommodate important group differences.

At the same time, it is hoped that successful implementation can be achieved in all sites despite the variation in advantages and disadvantages with which they start. An important reason for optimism can found in the underlying rationale for adopting a collaborative approach to program design and implementation. By investing responsibility for designing the specific ways in which the program’s services, incentives, and social supports are operationalized in the local partners, and by making sure that residents’ own perspectives and insights get heard and have influence, chances are greater that the program that emerges will be well-suited to the special circumstances and types of people in each site.

In addition, it is hoped that these local partners will benefit from external technical assistance in designing and implementing their programs. Here again, the role of external change agents (MDRC and other national or local technical assistance experts) may be key in guiding the local collaboratives in making sound choices, informed by lessons — positive and negative — from many past welfare-to-work and job training programs. The implementation analysis will therefore examine the role and contributions of these groups in the process of building local Jobs-Plus programs (and in strengthening their local capacity more generically, as discussed in the next section).

Still, success here is by no means assured, and assessing the broad feasibility of the overall Jobs-Plus program model is an important research goal. If it happens that implementation success varies greatly across the sites, the evaluation will then investigate whether particular pre-existing conditions at the sites and other factors help explain that variation.

C. Testing institutional change

Hypothesis: Successful implementation of Jobs-Plus can produce broad and enduring institutional change, in terms of inter-agency relationships, resident empowerment, and local capacity.

The Jobs-Plus demonstration is striving to produce institutional change in local communities that encompasses but also transcends the Jobs-Plus program itself. (This is illustrated in moving from the middle box to the final box on the right side of Diagram 1.) Indeed, even if the Jobs-Plus program fails to achieve its proximate goals of improving residents’ employment and quality of life, it might succeed in improving "how policy business gets done" at the local level, which is an important broader objective of the demonstration’s community-building agenda.

As one example, some agencies, especially the welfare department and PHA, may take steps to ensure that their broader policies or administrative procedures are better coordinated in order to minimize the chances of working at cross-purposes, increase agency efficiency, and improve service delivery for their common caseloads. Moreover, both agencies may include residents who are welfare recipients more directly and routinely in these deliberations. As another example, they and other Jobs-Plus partners may together undertake new initiatives aimed at community economic development, local workforce development, crime reductions, urban infrastructure planning, and other quality-of-life improvements.

The Jobs-Plus field research will thus study agency and resident relationships to determine whether the local stakeholders are on a path toward institutionalizing the process of collaborative decisionmaking they engaged in for Jobs-Plus. In addition, it will assess whether the local stakeholders are likely to emerge from the demonstration with a greater generic capacity to work together on important future initiatives to build stronger communities.

Other important evidence of institutional change would be a finding that the program (if shown to be effective) evolves toward a more permanent status. The evaluation will determine whether Jobs-Plus is itself institutionalized, under the continuing guidance of the inter-agency and resident collaboratives, after MDRC’s and others’ technical assistance concludes and as the demonstration period itself ends.

In addition to understanding whether the sites endure these enduring institutional changes, it is important to learn how such change is achieved or why it is not achieved. This will involve studying the roles and strategies of members of the collaboratives and their local and national technical assistance partners and the institutional and political environment in which they work. For example, do "visionary" leaders or change agents emerge within the collaboratives and effectively advance the goals of Jobs-Plus? Are alliances built with powerful political allies to help foster institutional change? Do reform impulses and goals across different government agencies coincide or clash? Do bureaucratic structures and processes impede or facilitate change? Do external change agents play a significant role in advancing the process of change?

V. Evaluating the Effects of Jobs-Plus on Work Outcomes

A fundamental question for the Jobs-Plus demonstration is: Does the program dramatically increase employment and earnings among public housing residents? Through a number of innovative analyses, the evaluation hopes to provide reliable evidence for judging the effectiveness of the program in achieving this central goal.

A. Testing the power and robustness of Jobs-Plus to increase employment and earnings at the individual level

Hypothesis: Taken as a whole, and when all elements of the model are successfully implemented, Jobs-Plus can dramatically increase employment and earnings across diverse settings and for different types of people.

As previously discussed, it is hoped that the distinctive features of Jobs-Plus will allow it to produce effects on employment and earnings that surpass the more modest achievements of even the most successful past welfare-to-work and job training programs. The first-order objective of the impact evaluation is, then, to determine whether this goal is achieved. Using the comparative interrupted time series analysis mentioned above, part of the impact study will measure the program’s employment effects on the individuals and households residing in the Jobs-Plus developments at the start of the program, regardless of whether they continue living there over the course of the evaluation follow-up period. This analysis will determine whether Jobs-Plus represents a viable means of transforming public housing developments into places that launch residents into work, help them remain employed, and increase their earnings.

Part of the impact analysis will measure program effects for all seven demonstration cities combined (i.e., a "pooled" analysis). This will show whether, on average, living in a Jobs-Plus housing development increased employment and earnings for residents by more than would have occurred had those residents not lived in a Jobs-Plus development. However, average effects can mask important variations in results. Equally important for the evaluation is to determine whether Jobs-Plus is broadly effective or robust. Can big employment effects be achieved across a number of demonstration cities, despite the vast differences in the types of people living in public housing and the types of labor markets and other local conditions found across those cities and neighborhoods? Of particular interest from the perspective of welfare reform is whether Jobs-Plus is effective for the subgroup of residents who are welfare recipients.

It is expected that for Jobs-Plus to have large, positive effects on employment and earnings, it must be successfully implemented in terms of the criteria described in the foregoing section. As illustrated in Diagram 2, successful implementation of Jobs-Plus should lead to an increase in the work preparedness of residents in the Jobs-Plus development (relative to their counterparts in the control developments). The program’s outreach to employers is also expected to increase employer demand for Jobs-Plus residents and, hence, residents’ access to jobs. Together these effects should yield positive impacts on a variety of work-related outcomes, as shown in the box on the right side of Diagram 2 (e.g., employment rates, employment duration, earnings, and job quality).

If the implementation of Jobs-Plus or its employment impacts are extremely uneven across the sites, the evaluation will examine whether the sites that were most successful in implementing the program also produced the biggest impacts. Such a correspondence would support the hypothesis that large employment effects may indeed depend on successful implementation of Jobs-Plus in the ways that have been defined for this evaluation.

The evaluation may, of course, find that even with successful implementation Jobs-Plus does not succeed in increasing employment outcomes. If so, this would be important evidence against the theory underlying Jobs-Plus, which posits that because of its distinctive features the program will be unusually effective.

B. Testing the "synergy" hypothesis

Hypothesis: The successful implementation of all three Jobs-Plus program elements — saturation-level services, incentives, and supports — is a pre-requisite for producing big effects on employment outcomes.

Fundamental to the Jobs-Plus approach is its emphasis on combining and coordinating three different treatment components, each of which addresses a different category of work impediments: inadequate preparation for work or work-search skills; inadequate financial rewards for work; and inadequate social support for work. The theory behind this approach is that all of these work impediments must be addressed, and that when all three treatment components are implemented together, each will strengthen the effectiveness of the others. It is thus predicted that through a form of synergy between the program’s services, incentives, and supports, Jobs-Plus will produce much more powerful effects than would occur if one or more of these treatments were omitted. In short, all three of these features are assumed to be vital.

If the demonstration sites uniformly succeed in implementing all three components, and if the program also produces uniformly large employment impacts, it would leave open the possibility that all three components were indeed making an important contribution. Unfortunately, though, it would not rule out the alternative possibility that only one or two of the components, or perhaps other features of Jobs-Plus, were entirely responsible for the results.

The evaluation research design will not permit a rigorous test of the relative effects of different program components. However, depending on the pattern of actual implementation and impact findings across the sites, it may still be possible to address the synergy hypothesis in an informative way. If, for example, some sites do not fully implement one or two of the three components but, nonetheless, do succeed in producing large impacts that rival those where all three features are fully implemented, that would be evidence against the hypothesis that all three components are vital. Alternatively, if the only sites that produce large impacts are those that fully implement the program’s services, incentives, and supports, that would lend weight in favor of the hypothesis that combining the three components is indeed essential to the effectiveness of Jobs-Plus.

C. Testing a hypothesized causal chain

Hypothesis: Jobs-Plus can produce big effects on work if it substantially increases residents’ "preparedness for work" and efforts to look for work.

It is expected that if Jobs-Plus achieves large employment impacts, it will do so by changing certain work-related attributes, attitudes, or behaviors among residents. For example, it may increase their diligence in searching for employment, their knowledge about how best to go about this task, their occupational or basic skills or work habits, their education or training credentials, or their commitment to working. Moreover, it is predicted that these types of changes will follow directly from a fully successful implementation of Jobs-Plus. (See Diagram 2.)

The impact study, relying largely on survey data, will attempt to measure whether such changes are indeed occurring, whether they are larger in those sites where employment impacts are larger (assuming variation in impacts occurs), and whether they occur prior to employment outcomes. If evidence can be generated to support this hypothesized causal chain leading from the implementation of Jobs-Plus to work-preparedness impacts and then to work impacts, it will lend credibility to the overall conclusion linking Jobs-Plus to any big changes observed in residents’ employment outcomes.

An alternative — or complementary — causal chain involving "employer demand" may also be relevant. The demonstration sites are likely to undertake special efforts to build linkages to private sector employers, such as through systematic job development (e.g., where program staff try to locate employers with open positions that might be suitable for Jobs-Plus participants), or where new job opportunities are created explicitly for Jobs-Plus residents by a network of prominent employers in the community (such as those involved in some form of business with the housing authority or other partners in the collaborative) with whom the program establishes special relationships. Jobs-Plus sites may also establish "community service jobs," paid for with public and private funds, to create employment opportunities for residents who have difficulty qualifying for unsubsidized jobs. As previously mentioned, these and other efforts may directly increase "employer demand" for workers from the Jobs-Plus developments. In turn, this increased demand might by itself cause substantial employment and earnings impacts. Or (and perhaps more realistically) it may be that a program-induced increase in employer demand may only contribute to employment impacts if the program also increases residents’ preparedness for work, so that residents are better able to take advantage of those new opportunities.

Given the importance that sites are likely to place on employer outreach in the Jobs-Plus demonstration, the evaluation will describe the intensity and productivity of their efforts to locate and stimulate job opportunities for residents.

D. Testing whether Jobs-Plus can transform public housing developments into communities of workers

Hypothesis: Jobs-Plus can help ensure that a dramatically larger share of the population living in public housing at any given time will be working at that time.

As previously mentioned, it is hoped that Jobs-Plus increases the long-term employment and earnings of residents living in Jobs-Plus housing developments at the start of the demonstration, regardless of whether they continue living in those developments. It is also hoped that the program increases the proportion of residents who at any given time are employed while living in the Jobs-Plus developments. Achieving the first objective — big employment and earnings effects on individuals (or households) — does not necessarily ensure achieving the second — big impacts on developments. This is because many of the residents who benefit from Jobs-Plus may choose to move out of their public housing development after becoming employed.

The impact analysis will therefore include a second level of inquiry that focuses on the effects of Jobs-Plus in which the development is the unit of analysis. For example, it will measure the proportion of residents employed at specific points in time (e.g., annually) among all residents living in the Jobs-Plus development at that same time. It will examine how much this proportion changes over time, starting five years before the implementation of Jobs-Plus and continuing for five years afterward. It will determine whether the proportion employed rises sharply and substantially during the five-year follow-up period, and, if so, whether that departure from the past trend is much sharper and much more substantial than any departure from trends observed in the comparison developments. Such a pattern would support a conclusion that Jobs-Plus caused that large employment effect for the development itself. (See Bloom, 1996. A similar development-level analysis will be applied to welfare and other outcome data.)

Of course, an influx over time of new residents who were already working before moving into the Jobs-Plus developments could cause development-level employment rates to grow even in the absence of any effect of Jobs-Plus. Fortunately, the individual-level analysis along with data on resident turnover and the employment status of new residents will make it possible to disentangle the contribution of Jobs-Plus from the influence of a change in the resident population in accounting for increases in employment and earnings at the development level.

VI. Evaluating the Effects of Jobs-Plus on Residents’ Reliance on Welfare and Food Stamps

A. Testing the impact of Jobs-Plus on residents’ use of welfare and Food Stamps at the individual and development levels of analysis

Hypothesis: Dramatically increasing the employment and earnings of residents will substantially reduce residents’ reliance on welfare and Food Stamps.

If Jobs-Plus succeeds in increasing residents’ employment and earnings, these effects should, in turn, reduce residents’ use of welfare and Food Stamps, as illustrated in Diagram 3. The evaluation will study the effects of the program on these outcomes at both the individual (or household) level and the development level, following the strategies referred to previously for the analysis of the program’s impacts on work outcomes. The welfare and Food Stamps outcomes will be measured primarily with administrative records data. Outcomes such as the percentage of residents receiving TANF payments, the average amount of TANF payments received, the average number of months receiving TANF benefits, and similar outcomes for Food Stamps will be measured. Survey data will allow some assessment of the program’s effects on the receipt of other transfer benefits, such as state general assistance payments and Supplemental Security Income (SSI).

VII. Evaluating the Effects of Work Impacts on Quality-of-Life Impacts

A. Testing the link between work and quality-of-life impacts at the individual level

Hypothesis: Dramatically increasing the employment and earnings of residents will substantially improve their quality of life (whether or not they remain in public housing.)

Although increasing sustained employment is the fundamental goal of Jobs-Plus, part of the rationale for this goal is an assumption that increased work is a route to a better quality of life for poor people living in public housing. This assumption cannot be taken for granted, however, particularly if the work is largely in the low-wage sector of the labor market and does not lead to substantial gains in overall family income, even with the more advantageous financial incentives offered by Jobs-Plus. The Jobs-Plus impact analysis will therefore test whether substantially increasing work — if this is achieved by the program— does in fact substantially improve residents’ well-being, as illustrated by the path from the work impact box to the family well-being and quality-of-life box in Diagram 3.

A variety of indicators of individual and family well-being will be analyzed. These will include, for example, residents’ poverty and material hardships, their freedom from drug or alcohol dependency, various school, behavioral, and health outcomes for their children, and a variety of other quality-of-life outcomes.

If Jobs-Plus achieves its intended effects on individuals’ employment and earnings, it will be important to understand whether they move out of their developments in response. Some newly employed residents may choose to stay despite having their rent increased (as a result of higher earnings) because of fear that they might lose their job or that the job might end and that, if that happened, they might face a long wait for housing assistance if they needed it again. Many residents may also enjoy living in their development and have strong social ties with other residents there. Their desire to stay may grow even stronger if they experience and want to maintain strong supports for work not available to them elsewhere, if the quality of life in the development improves, and also if more desirable and affordable housing outside of the development is hard to find. Other residents, however, may take advantage of any opportunities they have to move out of public housing.

As part of this investigation, the study will examine how residents’ housing choices and options change as their earnings grow. For example, do they "climb the housing ladder," from public housing to equal or better-quality subsidized or unsubsidized rental housing or to home ownership? What circumstances and considerations influence their choices?

B. Testing the link between work and quality-of-life impacts at the development level

Hypothesis: Dramatically increasing the proportion of residents who at any given time are working will dramatically increase the quality of life within public housing developments.

Jobs-Plus is not only expected to improve the well-being of individual residents — who may or may not continue living in their public housing development, it is also expected to improve the quality of life within public housing for those who remain there.

The hypothesis that quality-of-life improvements within public housing can be achieved by increasing residents’ employment is consistent with the broader and widely shared view that boosting residents’ employment is fundamental to inner-city revitalization. For example, Wilson (1996) postulates that high rates of joblessness in inner cities produce severe social problems that make those areas unpleasant and dangerous places in which to live. He argues, further, that those problems cannot be solved without substantially raising the proportion of residents in those communities who work.

This is a compelling theory on its face. At the same time, there is no clear empirical evidence that substantially increasing employment rates in high-poverty communities (without simply "changing" the people who live there, as in a gentrification process) would actually produce major quality-of-life improvements, especially if much of the new employment is in poor-quality jobs. Furthermore, if newly employed residents choose to leave a community, community-wide improvement in quality of life may be impeded, or conditions might even worsen. It may also be that quality-of-life improvements do not come about until a "tipping point" is reached when a certain critical mass of residents are working steadily at any point in time.

To determine the effects of Jobs-Plus on the quality of life within public housing, and whether positive impacts here (if achieved) result from big impacts on employment, the impact study will again adopt a "development-level" perspective. In that analysis the unit of analysis will be the population of residents living in a development at a given point in time (which, over time, may include a growing share of newcomers). A variety of outcomes will be measured, such as whether residents view their development as a good place to live, and whether they feel safe living there, whether they have recently been victims of crimes, and whether they have social support networks. Much of this information will come from survey data, but some will also come from field research and possibly from housing authority and other agency (e.g., police department) data. The analysis will determine whether, since the start of Jobs-Plus, these aspects of life in public housing improve more dramatically in the treatment developments than in the comparison developments.

It is possible that Jobs-Plus will produce big quality-of-life improvements within public housing, independent of any effects the program has on work — and may come about even if Jobs-Plus fails to generate employment impacts. For example, these improvements might occur if Jobs-Plus, through its efforts to mobilize residents and make them collaborative partners, leads them to become more effective advocates for their communities, with greater ability to get official agencies to respond to problems within their developments. (See Diagram 3.) Moreover, the efforts to mobilize residents around the goals of Jobs-Plus may lead to more of them becoming directly active in neighborhood improvement projects sponsored by residents themselves. Of course, it may also be that Jobs-Plus affects quality of life within the developments both through its impacts on work and by increasing resident activism.

To assess the effects of the work impacts of Jobs-Plus on quality-of-life impacts at the development level, the evaluation will determine whether improvements in both of those domains tend to be found together across the sites, or whether they vary independently across the sites. If the latter pattern prevails, or if quality-of-life improvements fail to emerge despite big employment effects, it would seriously challenge the hypothesis that achieving big employment effects is a way to transform communities into better places in which to live. The evaluation will also examine whether Jobs-Plus appears to influence quality-of-life outcomes more directly, such as by affecting resident activism within and on behalf of their developments.

In a related though much less rigorous analysis, the evaluation will make some effort to gauge whether Jobs-Plus has positive "spillover" effects in the surrounding neighborhood. For example, it may try to assess whether residents of the development are viewed more positively by outside neighbors as a result of the program, and whether the implementation of Jobs-Plus seems to coincide with positive trends in various quality-of-life indicators for the surrounding neighborhood.

VIII. Establishing Causality Between Jobs-Plus and Implementation and Impact Outcomes

As this paper has shown, the Jobs-Plus evaluation will include a number of causal analyses as part of its implementation and impact studies, and its research design is unusually well-positioned to address many of them. But, despite its strengths, the evaluation still faces significant challenges. For example, the random assignment design, while potent, is much more advantageous for estimating the effects of Jobs-Plus on work and other outcomes when all program sites are combined into a pooled sample. Site-specific impact estimates will have less certainty, because only two or three developments were randomly assigned within each site. Thus, by chance, a "better" development (if there is one) may have been chosen within any given site to be the Jobs-Plus development, or may have ended up as a comparison site. Even for the pooled analysis, however, the small number of sites makes this a less rigorous design than is typical in social experiments in which large numbers of individuals are randomly assigned.

If Jobs-Plus produces very large impacts, that result may compensate for some of these design weaknesses. In other words, the bigger the estimated impacts, the more plausible it becomes to attribute causality to the program rather than to other possible factors. Big impacts will be even more important in attributing causality to Jobs-Plus within any given demonstration site. The fact that the policy objective in launching the Jobs-Plus demonstration was to create an intervention that could produce much larger impacts than have been detected in past welfare-to-work and job training programs makes it easier to set a high impact threshold for inferring causality.

If impacts differ across the Jobs-Plus sites, it will be particularly difficult to determine whether that variation flows from differences in program strategies or differences in other factors, such as the types of people served, local economic conditions, or other aspects of the local context. This is a common problem in multi-site evaluations. Here, again, the larger the cross-site differences in impacts — and the more pronounced the differences in site practices or treatments — the more plausible it may be to infer that the distinctive practices of particular sites caused their superior performance. (Also, statistical adjustments to control for measured differences in resident characteristics across the sites can strengthen this analysis.)

The evaluation will also need to consider other ways in which it can support causal inferences. One way is to surface and explicitly test compelling alternative hypotheses. For example, welfare reform may be one of the most important factors contributing to changes in employment outcomes over time for the Jobs-Plus sample. To the extent that the evaluation can muster evidence against that factor as a likely causal agent, the stronger the case in favor of Jobs-Plus becomes.

Drawing causal inferences from the survey of residents, which will be administered in both the treatment and comparison developments prior to the start of Jobs-Plus and then again at one or two points during the subsequent five years, will be more difficult than drawing them from the administrative records data. This is because the survey does not include information on long-term trends prior to the start of Jobs-Plus, as is required by an interrupted time-series analysis. However, when the sample of sites is pooled, the survey analysis will, in essence, become an analysis of a social experiment, drawing power from the evaluation’s random assignment of housing developments.

In addition, the survey analysis can be "anchored" in the administrative records analysis. For example, the survey will include measures of before-after changes in employment. If those data show bigger changes for the Jobs-Plus developments than the comparison developments, and if this pattern is consistent with the findings from the longer-term administrative records data, it would be reasonable to conclude that the survey trends are being influenced by the same underlying factor — e.g. , the Jobs-Plus intervention. It may then become plausible to attribute big changes in other survey outcome measures to Jobs-Plus as well.

Any evidence that the evaluation can provide in support of anticipated causal chains between Jobs-Plus and the ultimate employment and quality-of-life impacts it hopes to produce would also help in attributing causality to Jobs-Plus. For example, if the analysis finds not only that the treatment sites reveal a much sharper deviation in employment trends than the comparison developments after Jobs-Plus begins, but also that residents in the program group experienced or used services, incentives, and supports to a much greater degree than those in the comparison group, and that their preparedness for work and job-seeking efforts also improved more substantially, it stands to reason (on theoretical grounds) that their employment outcomes should differ as well. In other words, if Jobs-Plus appears to work in the ways that prior theory says it should, that would be important corroborating evidence of the program’s causal influence.

Field research may also have a useful supporting role to play, especially for the development-level analysis, and particularly in estimating the effects of Jobs-Plus on quality-of-life improvements within public housing. For example, the field researchers and their key informants who live or work at the sites may be able to point to major changes within the Jobs-Plus developments that have occurred only after Jobs-Plus began and may be able to provide a plausible explanation linking those changes to explicit actions undertaken as part of Jobs-Plus. They may be able to establish that similarly profound changes have not occurred in the comparison developments.

Through all of these methods together, the Jobs-Plus study may be able to address causal hypotheses with an unusual degree of rigor for a community initiative evaluation.

IX. Conclusion

As noted in the beginning of this paper, the research findings from Jobs-Plus are expected to have relevance beyond the world of public housing. Many of the hypotheses discussed in the foregoing pages are directly pertinent to welfare reform and community revitalization initiatives. Consequently, the demonstration’s findings may yield important lessons and insights on which policymakers and administrators can draw in attempting to build a work-based welfare system and improve distressed inner-city neighborhoods.


References

Bloom, Howard. 1996. "Building a Convincing Test of a Public Housing Employment Program for the Jobs-Plus Demonstration." Paper prepared for the Manpower Demonstration Research Corporation and presented at the Annual Research Conference of the American Association for Public Policy and Management (APPAM), Pittsburgh, PA, October 31–November 2, 1996.

Hollister, Robinson G., and Jennifer Hill. 1995. "Problems in the Evaluation of Community-Wide Initiatives." In James P. Connell et al. (eds.), New Approaches to Evaluating Community Initiatives: Concepts, Methods, and Contexts. Washington, D.C., The Aspen Institute.

Kingsely, G. Thomas, Joseph B. McNeely, and James O. Gibson. 1997. Community Building Coming of Age. Washington, D.C.: The Development Training Institute, Inc., and The Urban Institute.

Wilson, William Julius. 1996. When Work Disappears: The World of the New Urban Poor. New York: Alfred A. Knopf, Inc.

 

Funders

U.S. Department of Housing and Urban Development, The Rockefeller Foundation, U.S. Department of Health and Human Services, The James Irvine Foundation, The Joyce Foundation, Northwest Area Foundation, Surdna Foundation, Inc., U.S. Department of Labor, The Annie E. Casey Foundation


The findings and conclusions presented in this report do not necessarily represent the official positions or policies of the funders.
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Appendix


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