Community-level impacts of temperature on urban street robbery

Purpose

Conduct the first empirical intra-urban examination of community-level connections between street robbery and temperature. Examine whether community socioeconomic status (SES) and crime-relevant land uses strengthen or weaken the temperature impact. A theoretical framework relying on routine activity theory, crime pattern theory, and resident-based control dynamics organized predictions.

Data and methods

For Philadelphia census tracts (n = 381), monthly street robbery counts and temperature data for 36 consecutive months were combined with census and land use data, and analyzed with multilevel models.

Results

Community robbery counts were higher when temperatures were higher, and in lower SES communities. In support of previous work with property crime, but in contrast to previous work with assault, the effects of temperature were stronger in higher SES communities. In support of the integrated model, commercial land use prevalence and subway stations were associated with heightened temperature impacts on robbery.

Conclusions

Community-level fixed and random effects of temperature on urban robbery counts persist when controlling for land use and community structure; further, the random effects depend in part on both. There are implications for understanding indigenous guardianship or informal resident-based place management dynamics, and for planning seasonal police deployments.     

Influence of confidence inflation and explanations for changes in confidence on evaluations of eyewitness identification accuracy

Guidelines for conducting police line‐ups typically recommend immediate assessment of eyewitness confidence following identification. This confidence level can presumably be used to estimate accuracy even in the presence of subsequently inflated confidence. In this experiment, we examined students' perceptions of immediate and inflated confidence and whether their reliance on confidence varies as a function of the explanations given by the eyewitness for her inflated confidence. Each of 126 university students viewed one of five versions of a videotaped officer–eyewitness interaction depicting an eyewitness identification and follow‐up interview in which the eyewitness gave a (1) high or (2) moderate level of confidence or inflated her confidence and gave a (3) confidence epiphany, (4) memory contamination, or (5) no explanation for the inflation. The memory contamination and confidence epiphany explanations led to lower ratings of identification accuracy as compared to the high‐confidence control condition, supporting the immediate confidence recommendation but in some ways contradicting previous research on this issue. The results suggest the need for further research to understand the conditions under which confidence inflation influences juror evaluations of eyewitness identification.     

Common‐interest housing in the communities of tomorrow

Abstract

This article offers a broad conceptual framework for understanding the rise of common‐interest housing developments (CIDs), including gated communities, townhouse and condominium projects, and other planned communities. The article begins by describing the CID as an institution and the essential characteristics and varieties of CIDs. Second, the rapid spread of CIDs is attributed to the incentives currently operating on real estate developers, municipal governments, and consumers. Third, this institution is placed in the context of definitions of public and private, and the categories of state, market, and civil society.

The article then presents the eight different “big‐picture” interpretations of this overall phenomenon that could inform the public policy framework within which CIDs are situated. They can be seen as an imperfectly realized version of the “rational choice” or “public choice” model, and reform efforts should be aimed at making choice mechanisms more effective.     

The Grass is Greener,But Why? Evidence of Employees’ Perceived Sector Mismatch from the US,New Zealand,and Taiwan

ABSTRACT

To answer the question of who wants to work for the government, scholars have relied on a few approaches, including sector preference, sector-based comparison of work motives, and sector-switching patterns of job mobility. The present study offers a related but distinct approach: perceived sector mismatch. The attractiveness of public sector jobs differs greatly across countries; thus, in order to present a more comprehensive study, we examine data from the U.S., New Zealand, and Taiwan, where attitudes towards public sector jobs differ significantly as a result of different public service laws and traditions. Across all three samples, we find that, among private sector employees, the preference for a public service job is related to socio-economic disadvantage. Among public sector workers, reasons for perceived sector mismatch vary, but often suggesting job dissatisfaction in current public sector jobs, rather than perceived advantages of the private sector (including compensation). These findings are followed by theoretical and practical implications from this comparative study.     

“The Train Has Left the Station”: The Project on Emerging Nanotechnologies and the Shaping of Nanotechnology Policy in the United States

The purpose of this paper is to analyze the efforts of the Project on Emerging Nanotechnologies (PEN) in seeking to influence nanotechnology policy in the United States. Using the conceptual framework of anticipatory governance to guide the analysis, a series of strategies that PEN adopted will be described, including leveraging external expertise, developing cross‐disciplinary research products, providing a future‐oriented view on policy analysis, and building a brand for communications and outreach. This case study is a useful example in demonstrating the recent conceptual shift away from relying on government‐led technology assessment efforts to consider the longer‐term implications of new technologies toward the concept of anticipatory governance that includes a more substantive role for nongovernmental actors, that in providing forward‐looking, actionable intelligence for decision makers. Considering the example of PEN also highlights the critical role that boundary‐spanning organizations play in linking together disparate communities of expertise.     

The Perils of Bula Matari: Constraint and Power in the Colonial State

This review article argues that analyses of the food security implications of emerging powers in Africa could be strengthened through foregrounding the issue of perspective. Researchers working in this area should engage with food security opinion contests, and avoid obscuring these debates moving forward.     

Foot Patrol in Violent Crime Hot Spots: The Longitudinal Impact of Deterrence and Posttreatment Effects of Displacement

This study revisited the Philadelphia Foot Patrol Experiment and explored the longitudinal deterrent effects of foot patrol in violent crime hot spots using Sherman's (1990) concepts of initial and residual deterrence decay as a theoretical framework. It also explored whether the displacement uncovered during the initial evaluation decayed after the experiment ended. Multilevel growth curve models revealed that beats staffed for 22 weeks had a decaying deterrent effect during the course of the experiment, whereas those staffed for 12 weeks did not. None of the beats had residual deterrence effects relative to the control areas. The displacement uncovered had decayed during the 3 months after the experiment, and it is theoretically plausible that previously displaced offenders returned to the original target areas causing inverse displacement. These results are discussed in the context of Durlauf and Nagin's (2011) recent proposal that prison sentences should be shortened, mandatory minimum statutes repealed, and the cost savings generated by these policy changes shifted into policing budgets to convey more effectively the certainty of detection. It is concluded that if Durlauf and Nagin's proposal is to succeed, then more holistic policing strategies would likely be necessary. Foot patrol as a specific policing tactic seems to fit nicely into a variety of policing paradigms, and suggestions for incorporating them to move beyond strictly enforcement‐based responses are presented.