Time scarcity is one of the strongest correlates of fast food consumption. To estimate the causal effect of time lost on food choice, we match daily store-specific foot traffic data traced via smartphones to plausibly exogenous shocks in highway traffic data in Los Angeles. We find that on days...

Between April and July 1994 Rwanda experienced a tremendous wave of inter-ethnic violence that caused at least 500,000 deaths. Combining birth history data drawn from the 2000 Rwanda Demographic and Health Survey with prefecture-level information on the intensity of the conflict, we examine the...

From individual-level longitudinal data for two entire cohorts of medical students in UK universities, we analyse the probability that an individual student will ?drop out? of medical school prior to the successful completion of their studies. We examine the cohort of students enrolling for a...

Background: Nutrition in utero and infancy may causally affect health and mortality at old ages. Until now, very few studies have demonstrated long-run effects on survival of early life nutrition, mainly because of data limitations and confounding issues. Methods: This paper investigates whether...

Bivariate duration data frequently arise in economics, biostatistics and other areas. In bivariate frailty models, dependence between the frailties (i.e., unobserved determinants) induces dependence between the durations. Using notions of quadrant dependence, we study restrictions that this...

We examine a new general class of hazard rate models for survival data, containing a parametric and a nonparametric component. Both can be a mix of a time effect and (possibly time-dependent) marker or covariate effects. A number of well-known models are special cases. In a counting process...

This paper sheds light on the role of family networks in the dynamics of a West African labour market, i.e. in the transitions from unemployment to employment, from wage employment to self-employment, and from self-employment to wage employment. It investigates the effects of three dimensions of...

This study analyses the relationship between life expectancy and parental education. It extends the previous literature that focused mostly on the relationship between individuals' own education and their life expectancy. Based on data from the German Socio-Economic Panel Study and survival...