Barriers to prosperity: the harmful impact of entry regulations on income inequality

Public Choice - Entry regulations, including fees, permits and licenses, can make it prohibitively difficult for low-income individuals to establish footholds in many industries, even at the...     

Policing Schools: Examining the Impact of Place Management Activities on School Violence

The present study examines whether the presence of school resource officers (SROs) and their level of involvement in place management activities are associated with higher or lower rates of school-based serious violence. This study uses data from the 2010 School Survey on Crime and Safety (SSOCS) conducted by National Center for Educational Statistics. Propensity score matching is used to create a quasi-experimental design and isolate the influence of SROs and their level of involvement in place management activities on school-based serious violence. The analysis reveals that schools with a school resource officer are associated with higher rates of reported serious violence and those schools with SROs that participate in more place manager duties are also associated with higher rates of reported serious violence. These findings do not support the notion that SROs are acting as effective place managers and through this place management, reducing reported serious violence. Rather, it appears that the presences of a SRO and their execution of place manager duties is associated with an increase in the reporting of serious violence. Policy implications and limitations of the current research are also discussed.     

UK Initiatives on Forced Marriage: Regulation, Dialogue and Exit

The literature on feminism and multiculturalism has identified potential conflicts between the recognition of cultural diversity and securing women's equality. Three broad approaches to this dilemma have emerged in the practices of contemporary states: regulation, working with the communities, and exit. Each of these is apparent in current initiatives regarding forced marriage, but the overwhelming emphasis in the UK has been on enabling individuals to exit from the threat or reality of a forced marriage. In assessing these initiatives, this paper highlights the limitations of exit and the danger of moving towards immigration regulation as the preferred solution.     

Persistence of Polydimethylsiloxane Condom Lubricants

Polydimethylsiloxane (PDMS) is commonly used to lubricate condoms. The detection of PDMS on swabs from complainants can be used to support an allegation of sexual assault. Previous research has focused on establishing analytical techniques for detecting PDMS. This research examined the persistence of PDMS on the penis, in the vagina, in the mouth, and on skin. The longest PDMS detection times were 20 h on the penis, 35 h in the vagina, and 52 h on skin. PDMS was detected up to 4 h in the mouth if the participant did not eat or drink and up to 9 h if the participant slept. PDMS was not detected in the mouth after eating or drinking. The presence of biological fluids had no detrimental effect on the analysis. Aqueous extraction of swabs for DNA did not remove any significant amount of PDMS; hence, swab remains could be subsequently analyzed for PDMS.     

IDENTIFYING MECHANISMS BEHIND POLICY INTERVENTIONS VIA CAUSAL MEDIATION ANALYSIS

Causal analysis in program evaluation has primarily focused on the question about whether or not a program, or package of policies, has an impact on the targeted outcome of interest. However, it is often of scientific and practical importance to also explain why such impacts occur. In this paper, we introduce causal mediation analysis, a statistical framework for analyzing causal mechanisms that has become increasingly popular in social and medical sciences in recent years. The framework enables us to show exactly what assumptions are sufficient for identifying causal mediation effects for the mechanisms of interest, derive a general algorithm for estimating such mechanism‐specific effects, and formulate a sensitivity analysis for the violation of those identification assumptions. We also discuss an extension of the framework to analyze causal mechanisms in the presence of treatment noncompliance, a common problem in randomized evaluation studies. The methods are illustrated via applications to two intervention studies on pre‐school classes and job‐training workshops.