Corruption,Tax Evasion and the Laffer Curve

In a corrupt tax administration a rise in tax ratesets off complicated strategic moves by both taxpayersand administrators. It is shown that in somecircumstances, this may bring about Laffer likebehavior of overall tax revenue, i.e. a higher taxrate results in smaller net revenue for thegovernment. Further, a more intense tax effort byincreasing the number of returns audited may alsoreduce net revenues. Finally if tax and fine ratespositively influence the level of corruption in theadministration, these outcomes become more likely.     

Child Maltreatment,Placement Strategies,and Delinquency

The current study examined the criminal justice experiences of foster care youth living with relatives, foster families, and living in congregate care; dependents receiving in-home care; and non-dependent youth. Specific attention was directed at uncovering whether form of maltreatment, placement type, and/or placement instability were related to delinquency. A prospective analysis of official record data followed children in Los Angeles County from the time of a first admission to the Department of Children and Family Services (DCFS) to potential involvement in the criminal justice system (N = 1,235). The study also utilized a matched control design in which DCFS cases were compared to non-dependent controls (N = 1,235). The most consistent predictors of delinquency were placement instability and age at placement. Youth who were older at placement and youth with at least one placement change were more likely to be arrested for violent and non-violent crimes as well as be charged by the district attorney than younger youth with no placement changes.     

Methamphetamine use and violence among young adults

The current research analyzed the relationship between methamphetamine use and violence among young adults eighteen to twenty-five years old. Interviews were conducted with a sample of 106 respondents. The research was based primarily on in-depth, life-history interviews with individuals who used methamphetamine for a minimum of three months and who resided in Los Angeles County.Of the 106 respondents, 37 (34.9 percent) had committed violence while under the influence of methamphetamine. Males comprised two-thirds of the 37 respondents (N = 24). Of the total sample, 38 percent of males and 30 percent of females committed methamphetamine-related violence, respectively. Overall, the 37 respondents reported fifty-four separate violent events while using methamphetamine. Of these fifty-four events, thirty-three (61.1 percent) acts of violence involved domestic relationships, nine (16.7 percent) of the violent events were drug related, seven (13 percent) were gang related, and five (9.3 percent) involved random acts of violence (e.g., road rage, stranger assault).The findings suggest that methamphetamine use is a risk factor for violence. There was, however, no evidence of a single, uniform career path that all chronic methamphetamine users follow. Violence is not an inevitable outcome of even chronic methamphetamine use.     

Designing Historical Social Scientific Inquiry: How Parameter Heterogeneity Can Bridge the Methodological Divide between Quantitative and Qualitative Approaches

Seeking to advance historical studies of political institutions and behavior, we argue for an expansion of the standard methodological toolkit with a set of innovative approaches that privilege parameter heterogeneity to capture nuances missed by more commonly used approaches. We address critiques by prominent historians and historically oriented political scientists who have underscored the shortcomings of mainstream quantitative approaches for studying the past. They are concerned that the statistical models ordinarily employed by political scientists are inadequate for addressing temporality, periodicity, specificity, and context—issues that are central to good historical analysis. The innovations that we advocate are particularly well suited for incorporating these issues in empirical models, which we demonstrate with replications of extant research that focuses on locating structural breaks relating to realignments and split‐party Senate delegations and on the temporal evolution in congressional roll‐call behavior connected to labor policy during the New Deal and Fair Deal.     

Naturalistic decision making in forensic science: toward a better understanding of decision making by forensic team leaders

This study uses the naturalistic decision-making (NDM) perspective to examine how Dutch forensic team leaders (i.e., the officers in charge of criminal forensic research from the crime scene until the use of laboratory assistance) make decisions in real-life settings and identifies the contextual factors that might influence those decisions. First, a focus group interview was conducted to identify four NDM mechanisms in day-to-day forensic decision making. Second, a serious game was conducted to examine the influence of three of these contextual mechanisms. The results uncovered that forensic team leaders (i) were attracted to obtain further information when more information was initially made available, (ii) were likely to devote more attention to emotionally charged cases, and (iii) used not only forensic evidence in the decision making but also tactical, unverified information of the police inquiry. Interestingly, the measured contextual influences did not deviate significantly from a control group of laypeople.