The covariate-specific receiver operating characteristic curve is frequently used to evaluate the classification accuracy of a diagnostic test when it is associated with certain covariates. In this paper, we proposed a new procedure for estimating this curve based on a reformulation of the conventional location-scale model as well as the idea of composite quantile regression. Asymptotic normali...

INTRODUCTION Surveillance systems for health status and behaviors of populations are fundamental for planning, implementing, and monitoring preventive interventions. In 2006, the Italian Ministry of Health provided funding to the National Institute of Public Health to develop an ongoing surveillance system for adult behavioral risk factors. We describe the main features of the system (known as ...

The market for developing country sovereign debt has become increasingly competitive. Is this necessarily good for welfare? Or, is there scope for beneficial government intervention to reduce competition, and promote coordination, among creditors? This paper reviews recent theoretical work on the market for developing country sovereign debt that shows that competition can reduce welfare. Furthe...

know something about themselves, about each other, about how others view themselves and others, about how others think others view themselves and others, and so on. Taken to an extreme, the amount of knowledge an agent might possess to coordinate its interactions with others might outstrip the agent’s limited reasoning capacity (its available time, memory, and so on). Much of the work in studyi...