The thin blue line in schools: New evidence on school-based policing across the U.S.

U.S. public school students increasingly attend schools with sworn law enforcement officers present. Yet little is known about how these school resource officers (SROs) affect school environments or student outcomes. Our study uses a fuzzy regression discontinuity (RD) design with national school-level data from 2014 to 2018 to estimate the impacts of SRO placement. We construct this discontinuity based on the application scores for federal school-based policing grants of linked police agencies. We find that SROs effectively reduce some forms of violence in schools, but do not prevent gun-related incidents. We also find that SROs intensify the use of suspension, expulsion, police referral, and arrest of students. These increases in disciplinary and police actions are consistently largest for Black students, male students, and students with disabilities.     

Expensive English: an accessible language approach for Papua New Guinea agricultural development

Language used in capacity development programmes is usually that of the donor country, often English. However, research shows that the language used can be detrimental to the success of the programme. Little attention has been given to the issue of language, yet it is important that programme participants fully understand the capacity development programme’s concepts to ensure that the programme achieves its full potential. This article explores an accessible language approach to a Papua New Guinea development programme. Arguments are based on an in-country research project designed to provide women and men with deeper understanding of gender equity.     

Modeling Temperature Variations Using Monte Carlo Simulation: Implications for Estimation of the Postmortem Interval Based on Insect Development Times*†

The association between insect development and temperature is well established. Thermal summation using accumulated degree-day measures is commonly used. However, the time at which evidence is collected is important in these estimates. The aim of this study was to provide a simulated model of the effect of temperatures on six dipteran species commonly associated with cadavers, from the death scene to the refrigerator, and finally at the time of autopsy. Temperatures measurements were sampled over a 16-month period from the external environment (external to the mortuary), within the mortuary refrigerator, and within the mortuary autopsy suite. Monte Carlo simulation using accumulated degree-days (ADD) was used to estimate the variations based on the mean and standard deviation of the temperature measurements. It was found that there was a negative correlation between the base temperature of the fly species (lowest temperature at which the flies will survive) and developmental likelihood. Species with high base temperatures (Chrysomya albiceps, Chrysomya chloropyga, and Musca domestica) were less likely to continue development in refrigerators than species with lower base temperatures (Lucilia sericata and Piophila casei). The findings of this study highlight the importance of recording temperature measurements and the period of refrigeration on PMI estimation especially when continued development occurs in spite of a period of cooling of the insect evidence.     

Representativeness and Motivations of the Contemporary Donorate: Results from Merged Survey and Administrative Records

Only a small portion of Americans make campaign donations, yet because ambitious politicians need these resources, this group may be particularly important for shaping political outcomes. We investigate the characteristics and motivations of the donorate using a novel dataset that combines administrative records of two types of political participation, contributing and voting, with a rich set of survey variables. These merged observations allow us to examine differences in demographics, validated voting, and ideology across subgroups of the population and to evaluate the motivations of those who donate. We find that in both parties donors are consistently and notably divergent from non-donors to a larger degree than voters are divergent from non-voters. Of great interest, in both parties donors are more ideologically extreme than other partisans, including primary voters. With respect to why individuals contribute, we show that donors appear responsive to their perception of the stakes in the election. We also present evidence that inferences about donor ideology derived from the candidates donors give to may not closely reflect the within-party policy ideology of those donors. Overall, our results suggest that donations are a way for citizens motivated by the perceived stakes of elections to increase their participation beyond solely turning out.     

The Developmental Unfolding of Sibling Influences on Alcohol Use over Time

Research has long demonstrated that siblings are similar in their alcohol use, however much of this work relies on cross-sectional samples or samples of adolescents alone and/or exclusive focus on older siblings’ impact on younger siblings. Using a three time-point design from early adolescence to early adulthood (M ages?=?14.9, 18.3, and 22.4 years, respectively; 55% female; 54% European ancestry, 38% Asian ancestry), we evaluated the prospective older and younger sibling influences on alcohol use across time (N?=?613 sibling pairs; 35% sisters, 26% brothers, 39% mixed-gender; average age difference?=?2.34 years; 34% full-biological siblings, 46% genetically-unrelated adopted siblings, 20% pairs where one child was the biological offspring of parents and the other was adopted). The results from both the traditional and random-intercept cross-lagged panel analyses showed that older siblings’ alcohol use predicted younger siblings’ alcohol use across each developmental transition and across a variety of sibling contexts (e.g., gender composition, age difference, genetic relatedness). On the other hand, younger siblings’ alcohol use only predicted older siblings’ alcohol use when siblings were close in age (1.5 years or less) and under conditions of high sibling companionship. These results add to a body of literature illustrating how both older and younger siblings are important socializing agents of adolescent and early adult alcohol use. Assessing or co-treating siblings for alcohol problems may be an important add-on to existing adolescent and early adult alcohol prevention and intervention programs.     

‘Purifying’ the public world: feminist vigilantes in late Victorian England

In late nineteenth-century England, a number of feminists confronted prostitution through the closing of brothels and the expulsion of prostitutes from places of entertainment. Feminist historians have either understood this behaviour as reflective of feminist' powerlessness within the largely non-feminist movement for social purity, or they have neglected the behaviour and concentrated on the aspects of these women' work that appear more positive to feminists today. Neither approach attempts to understand why women took this more repressive stance and thought of it as feminist. To understand the actions of these women, it is necessary to recognise that their vision of a ‘purified’ public and private world was often informed by religious beliefs and adherence to temperance. Concern with the morality of public space also related to women' desire for safety in public places. And their ‘repressive’ and statist actions related in part to feminist philanthropist' changing attitude toward local government.     

Optimal taxation and economic growth: a comment

Scully (Public Choice 115: 299–312, 2003) claims that for the United States in 1960–1990, the growth-maximizing size of the state was about 19% of GDP. However if an error in the model specification is corrected and if 2001 vintage data is used (instead of 1996 vintage data), estimates of the growth-maximizing size of the state range between 9% and 29% of GDP. Further, the method spuriously identifies a ‘growth maximizing tax rate’ even if no relationship exists between growth and the size of the state. The model cannot address reliably the question it attempts to answer.     

Unfree labour in immigration detention: exploitation and coercion of a captive immigrant workforce

This paper focuses on labour within immigration detention in the United Kingdom, offering an original national case study as well as a new conceptual framework for analysing such practices. It does so through an innovative engagement with recent literatures on forced labour, unfreedom and hyper-precarity, particularly amongst irregular migrants. We advance two key arguments in this paper. First, that the available data on labour within immigration detention indicate that detainees should legally be considered employees and granted access to labour protections, including the national minimum wage. Second, that work in immigration detention is an example of state-sanctioned exploitative, coercive and unfree labour amongst a hyper-precarious group of the population. This case has implications for other country contexts where immigration detention is used.