Policing Socio-Geographic Boundaries and Inequality

Perspectives on Politics · 2025-06-10

How do patterns of racial inequality shape policing behavior in the United States? We investigate whether police engage in boundary maintenance at geographic points of racial difference. Critical race scholars suggest that police explicitly serve this function. Yet empirical studies are rare and limited to snapshots of a single city, making it hard to distinguish practices employed across departments from agency- and officer-level idiosyncrasies. We leverage high resolution data on police activity in seven U.S. cities to evaluate how police engage with racial boundaries. We find evidence that police activity is elevated in racial boundary zones relative to non-boundary zones, exceeds observed crime, and that racialized outcomes are as much a product of policing practices as they are of conflict between private citizens. We reorient the study of boundaries around top-down processes that lead to their regulation and identify an agenda for future research.

Can Digital Aid Deliver During Humanitarian Crises?

Management Science · 2025-11-01 · 1 citations

Can digital payments help reduce extreme hunger? Humanitarian needs are at their highest since 1945, aid budgets are falling behind, and hunger is concentrating in fragile states where repression and aid diversion present major obstacles. In such contexts, partnering directly with governments is often neither feasible nor desirable, making private digital payment platforms a potentially useful means of delivering assistance. We experimentally evaluated digital payments to extremely poor, female-headed households in Afghanistan, as part of a partnership between community, nonprofit, and private organizations. The payments led to substantial improvements in food security and mental well-being. Despite beneficiaries’ limited tech literacy, 99.75% used the payments, and stringent checks revealed no evidence of diversion. Before seeing our results, policymakers and experts are uncertain and skeptical about digital aid, consistent with the lack of prior evidence on digital payments for humanitarian response. Delivery costs are under 7 cents per dollar, which is 10 cents per dollar less than the World Food Programme’s global figure for cash-based transfers. These savings can help reduce hunger without additional resources, demonstrating how hybrid partnerships utilizing digital payment platforms can help address grand challenges in difficult contexts. This paper was accepted by Caroline Flammer, sustainability. Funding: Research funding was provided by the UK Foreign, Commonwealth and Development Office, awarded through the J-PAL Crime and Violence Initiative. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2024.06469 .

Can Digital Aid Deliver During Humanitarian Crises?

SSRN Electronic Journal · 2025-01-01 · 1 citations

Can Digital Aid Deliver During Humanitarian Crises?

SSRN Electronic Journal · 2024-01-01 · 3 citations

The Tyranny of Supply: Natural Resources and Rebel Territorial Control in Civil Conflicts

International Studies Quarterly · 2024-06-24 · 3 citations

Abstract The logic of territorial control is central to the study of internal conflict. Existing studies consider the consequences of territorial control without answering a critical question: what motivates rebel territorial control in the first place? Territorial control requires careful explanation. While it confers important benefits it is also costly to achieve and exposes rebels to state attack. This paper argues that benefits exceed costs when territorial control provides rebels with a reliable source of organizational supply. High-value lootable natural resources—resources available in abundance that are easy to extract and transport for sale—represent key components of a rebel's supply chain. To test the theory's implications, we introduce new cross- and sub-national time-series data on territorial control in sub-Saharan Africa and couple it with a new dataset of local natural resource values. We use an instrumental variable approach to address core endogeneity concerns. Results both substantiate our theoretical approach and provide evidence running contrary to existing arguments. These findings demonstrate that valuable natural resources, logistical supply constraints, and, more broadly, rebel military strategy, are critically important and need to be incorporated into work on civil war, territorial control, and rebel governance.

Vulnerability in research ethics: A call for assessing vulnerability and implementing protections

Proceedings of the National Academy of Sciences · 2024-08-14 · 18 citations

Ethics standards reference the need for special consideration of vulnerable populations, such as pregnant women, incarcerated individuals, and minors. The concept of vulnerability is poorly conceptualized in the medical sciences where it originated, and its application to the social sciences is even more challenging. Social science researchers may unwittingly fail to appreciate preexisting vulnerabilities and indeed may be responsible for inducing new research-related vulnerability. In this paper, we present the first comprehensive coding of country-level vulnerability designations. Specifically, we coded all 355 official documents governing social/behavioral human subjects research for the 107 countries with such regulations and identified 68 distinct vulnerability categories. The data reveal substantial regional variation, overemphasis of categories derived from medical sciences, neglect of critical categories such as displacement, and likely heterogeneity within and across groups. The article provides a conceptual framework that shifts the problem away from static, enumerated categories toward emphasis on research-induced vulnerability. Based on our conceptualization and coding, we present a framework for assessing vulnerability and implementing appropriate protections.

Banking bad? A global field experiment on risk, reward, and regulation

American Journal of Political Science · 2024-03-29 · 5 citations

Abstract Are banks sensitive to risk and reward in following global corporate transparency rules? Using a worldwide field experiment, this study evaluates competing predictions from expected utility, behavioralist, and institutionalist accounts. We incorporated a dozen companies around the world to make over 15,000 email solicitations asking for corporate accounts from 5000 of the world's internationally connected banks. Treatments randomize the risk profiles of different companies—by their countries’ association with corruption, terrorism, and tax evasion—and vary rewards by stating differing amounts of business revenues. The outcomes are the rates at which banks offer accounts and comply with rules on customer identification. The results suggest that banks are moderately responsive to risk—though not reward—but the magnitude of the effects is small, providing mixed evidence for conventional models and suggestive support for institutionalist accounts.

Replication Data for: Banking Bad? A Global Field Experiment on Risk, Reward, and Regulation

Harvard Dataverse · 2023-05-31

Are banks sensitive to risk and reward in following global corporate transparency rules? Using a worldwide field experiment, this study evaluates competing predictions from expected utility, behavioralist, and institutionalist accounts. We incorporated a dozen companies around the world to make over 15,000 email solicitations asking for corporate accounts from 5,000 of the world’s internationally connected banks. Treatments randomize the risk profiles of different companies – by their countries’ association with corruption, terrorism, and tax evasion – and vary rewards by stating differing amounts of business revenues. The outcomes are the rates at which banks offer accounts and comply with rules on customer identification. The results suggest that banks are moderately responsive to risk – though not reward – but the magnitude of the effects is small, providing mixed evidence for conventional models and suggestive support for institutionalist accounts.

Can Digital Aid Deliver During Humanitarian Crises?

arXiv (Cornell University) · 2023-12-20

Can digital payments systems help reduce extreme hunger? Humanitarian needs are at their highest since 1945, aid budgets are falling behind, and hunger is concentrating in fragile states where repression and aid diversion present major obstacles. In such contexts, partnering with governments is often neither feasible nor desirable, making private digital platforms a potentially useful means of delivering assistance. We experimentally evaluated digital payments to extremely poor, female-headed households in Afghanistan, as part of a partnership between community, nonprofit, and private organizations. The payments led to substantial improvements in food security and mental well-being. Despite beneficiaries' limited tech literacy, 99.75\% used the payments, and stringent checks revealed no evidence of diversion. Before seeing our results, policymakers and experts are uncertain and skeptical about digital aid, consistent with the lack of prior evidence on digital payments for humanitarian response. Delivery costs are under 7 cents per dollar, which is 10 cents per dollar less than the World Food Programme's global figure for cash-based transfers. These savings can help reduce hunger without additional resources, demonstrating how hybrid partnerships utilizing digital platform technologies can help address grand challenges in difficult contexts.

Don't Hide in Your Shell (Corporation): Using Field Experiments in International Business Research to Test Price Sensitivity to Risk in Creating Anonymous Shell Corporations

SSRN Electronic Journal · 2023-01-01