The interactive effects of policies: Insights for policy feedback theory from a qualitative study on homelessness

by Anna Kopec

Existing policy feedback literature on participation examines how policy designs shape political behavior and argues that policies can encourage some people to participate whilst discouraging others. This prompts the inquiry: how do the effects of policy design characteristics interact? How might the positive effects of one element of a policy, for example, interact with the negative effects of another to influence participation of a marginalized group? How might multiple negative or positive effects influence participation? To explore these complex effects, this study compares how homelessness policies affect political engagement in Melbourne, Australia, and Toronto, Canada.

Drawing on 118 qualitative interviews with individuals experiencing homelessness, service providers, and policymakers, this comparative study explores how the effects of policy design characteristics (i.e., distribution of benefit, generosity, eligibility, visibility, delivery design, and integration) work together to either mobilize or discourage political engagement. Table 1 defines these terms below:

Table 1. Policy design characteristic operationalization.

Figure 1 demonstrates how the interaction of multiple policies, through their design characteristics, influences political participation. These effects are shaped by the resources allocated, the signals policies send about individuals’ roles in society, and their broader impact on institutional capacity to facilitate engagement.

Figure 1. Interactive effects of policy characteristics on participation.

The qualitative interview data reveals diverse service access among participants, highlighting key variations in characteristics, particularly visibility, delivery, and integration. Table 2 outlines the policy areas by city and sector, detailing policy characteristics and their effects on engagement as reported by participants. While both cities have many negative policy effects, Melbourne’s housing and health policies showed more positive impacts, particularly in integration, visibility, and delivery.

Table 2. Policy design characteristics of policies utilized by the sample of participants and effects on participation.

Notably, Table 3 illustrates that individuals experiencing homelessness actively engage in various efforts to drive change. While 56-64% of participants reported voting in their last federal election, over 90% engaged in actions such as peer work, providing organizational feedback, and joining advisory groups.

Table 3. Participation according to venues in Melbourne and Toronto.

The way in which different policy design characteristics interact can either amplify exclusion or help counteract it, depending on how services are structured and delivered. For example, integrated service delivery can moderate the negative effects of means-tested programs with strict eligibility rules. In Melbourne, social workers traveling to service centers helped reduce barriers related to eligibility and stigma. In contrast, Toronto’s lack of visibility and integration often left participants feeling isolated.

Policy feedback scholars must pay closer attention to the lived experiences of marginalized populations. These perspectives reveal how policy design and the interplay of its characteristics directly shape political participation. Without this understanding, we risk overlooking the conditions under which participation influences policy or the ways we might create spaces that meaningfully support civic engagement.

This research highlights how policies are structured and delivered, not just how their content affects democratic engagement. Integrated, visible services can empower marginalized individuals to engage politically, even amid social and economic instability.

For marginalized and targeted populations, policy design can dictate their civic participation and relationship with the state. Too often, policies reinforce exclusion, further distancing individuals from decisions that directly impact their lives. By examining where and how these populations participate, we gain critical insight into whether their voices are meaningfully reflected in future policymaking.

Read the original article in Policy Studies Journal:

Kopec, Anna. 2025. “The Interactive Effects of Policies: Insights For Policy Feedback Theory From a Qualitative Study on Homelessness.” Policy Studies Journal 53(2): 243–262. https://doi.org/10.1111/psj.12532.

About the Author

Anna Kopec is an Associate Professor at the School of Public Policy at Carleton University. Her research agenda examines the relationship between political participation and public policy among marginalized populations in Western welfare states. How do policy designs influence the political agency of vulnerable groups, and how in turn do such groups participate to bring about changes to the policies and systems they interact with? This comparative work focuses on populations experiencing homelessness. A secondary research agenda examines intersectionality and homelessness, with a consideration of how policies and services individuals access influence how certain communities participate.

The Particular and Diffuse Effects of Negative Interactions on Participation: Evidence From Responses to Police Killings

by Cody A. Drolc & Kelsey Shoub

Negative interactions between the public and government agencies, particularly with law enforcement, have long been thought to reduce political participation and trust in government. However, less attention has been given to how negative events in government-citizen interactions shape civic participation and broader policy feedback. Specifically, little research has examined how government contact, whether personal (e.g., being arrested) or proximal (e.g., a family member is arrested), informs public engagement with local services. To fill this gap, we focus on police killings and their impact on the public’s willingness to engage with local public services. 

Theoretically, we draw on the policy feedback literature, which explores how personal experiences with government and government agents influence political participation and public evaluation of government. This framework suggests that government decisions send community-wide signals about the public’s value in the eye of the state, which in turn leads to disempowerment and reduced willingness to engage. Additionally, negative government actions–even when indirectly experienced–undermine perceptions of government legitimacy and thereby reduce participation. Based on these insights, we hypothesize two potential outcomes: the “Police Particular Hypothesis,” where a local police killing reduces engagement with the police specifically, and the “Diffuse Government Hypothesis,” which posits that such negative events decrease participation with local government services more broadly.

To test these hypotheses, we conducted a two-part study. First, we used observational data from Los Angeles, including 911 emergency calls and 311 non-emergency service requests from 2016 to 2020. We use a generalized difference-in-difference approach with matching to explore the effect of police killings on these two types of public engagement. Second, we conducted a survey experiment where participants were exposed to one of three randomly assigned news clippings, including one about a local police killing, and compared their willingness to engage with local government.

The findings demonstrate strong support for the Diffuse Government Hypothesis. In the weeks following a police killing, the number of 311 service requests dropped significantly, indicating that negative interactions with the police led to broader disengagement from local government services. However, there was no significant change in 911 emergency calls, suggesting that despite the negative events, the public still sees the police as essential for emergency situations. The figure below illustrates such relationships over time. The survey experiment further confirmed these findings, showing that participants exposed to the police killing vignette were less likely to trust and engage with local government. However, it also showed a reduction in the likelihood that someone would reach out to the police, providing some support for the Police Particular Hypothesis and suggesting that we might have observed floor effects in the observational study.

Image Description

This study contributes to our understanding of how negative events in government-citizen interactions affect community participation, expanding on policy feedback theories that traditionally focus on political participation. The findings have important implications for policymakers and public managers, highlighting the potential for spillover effects from negative events, such as police killings, to erode broader government legitimacy and engagement. 

You can read the original article in Policy Studies Journal at

Drolc, Cody A. and Kelsey Shoub. 2024. “ The Particular and Diffuse Effects of Negative Interactions on Participation: Evidence From Responses to Police Killings.” Policy Studies Journal 52 (3): 623–646. https://doi.org/10.1111/psj.12541.

About the Authors

Cody A. Drolc is an Assistant Professor in the Department of Political Science at the University of South Carolina. His research primarily addresses program implementation and oversight in an intergovernmental context, specifically focusing on policies such as Social Security Disability and veteran healthcare. 

Kelsey Shoub is an Assistant Professor in the School of Public Policy at the University of Massachusetts, Amherst. Her research examines two broad questions: How do descriptive identities (e.g., race and gender) of officials and civilians intersect with context to shape outcomes; and How does language relate to policy and perceptions of politics? She has been published in Science Advances, the Journal of Public Administration and Theory, and the American Journal of Political Science, among others.