We interpret the emergence of Jihadist terrorism in the light of contest theory. Al Qaeda may be portrayed as a contest organizer, providing a ‘prize’ to the best terrorist group. Each group maximizes its probability of winning by launching attacks more destructive than previous ones...

Cell phone laws prohibiting individuals from texting or using the phone while driving have been much debated in the United States. Currently, 33 states have passed cell phone laws targeting only young and novice drivers, while 10 states have similar laws for all drivers regardless of age. This...

The Poisson regression (PR) model is inappropriate for modeling over- or under-dispersed (or inflated) data. Several generalizations of PR model have been proposed for modeling such data. In this paper, a rich family of generalized Poisson regression (GPR) models is reviewed in detail. The...

Vector generalized linear models (VGLMs) as implemented in the vgamR package permit multiple parameters to depend (via inverse link functions) on linear predictors. However it is often the case that one wishes different parameters to be related to each other in some way (i.e., to jointly satisfy...

The Government of Uganda created in 2010 a strategic plan to invest in public health as part of its broader national development goals. The health plan recognizes housing and urbanization as a determinant of health, but has not yet formulated policy to address the relationship. This study can...

Measures of avoidable deaths incorporate the notion that deaths from certain causes should not occur within specified age groups given effective prevention or timely and appropriate access to health care. The present study investigated the impact on specific types of avoidable cancer deaths...

Child neglect, which is the most common form of maltreatment in the United States, has been repeatedly linked to an increased risk of delinquency. However, the existing literature lacks studies that simultaneously investigate how distinct types of neglect differentially influence delinquency...

Poisson regression is important in the analysis of longitudinal count data. However, the variance of responses is often much greater than the sample mean in practice, contradicting the Poisson model. To solve this overdispersion problem, negative binomial regression model was introduced by...

Politicians’ efforts to stay in office may lead to the occurrence of political cycles in legislation activity. The aim of this article is to analyze the political legislation cycles in a post-socialist economy of a young democracy, namely in the Czech Republic. Our estimation of the...