This paper improves upon the recently developed literature on exits from fixed exchange rate regimes in three ways: 1) It allows for two indicators for post-exit macroeconomic conditions, the change in the exchange rate and the change in the output gap; 2) it tests whether the distinction...

The question of whether two drugs – namely alcohol and tobacco – are used as complements or substitutes is of crucial interest if side-effects of anti-smoking policies are considered. Numerous papers have empirically addressed this issue by estimating demand systems for alcohol and tobacco...

We analyze demand for prepaid cellular voice and short message service (SMS) in South Africa by means of a demand-and-supply structural model based on a multinomial specification fitted to a cross-sectional data set on Vodacom customers collected in 2005. We find that consumers are very...

In a large class of hazard models with proportional unobserved heterogeneity, the distribution of the heterogeneity among survivors converges to a gamma distribution. This convergence is often rapid. We derive this result as a general result for exponential mixtures and explore its implications...

Abstract Job characteristics can affect worker turnover through their effect on utility and through their effect on outside job opportunities. We separately identify and estimate the roles of these two channels. Our method exploits information on job changes and relies on an augmented sample...

We develop a simple semiparametric framework for combining censored and uncensored samples so that the resulting estimators are consistent, asymptotically normal, and use all information optimally. No nonparametric smoothing is required to implement our estimators. To illustrate our results in...

In February 2008, British Telecommunications (BT) introduced automatically renewing, or ‘rollover’, contracts into the UK market for fixed-voice telephone service. These contracts included a 12-month Minimum Contract Period (MCP) with associated Early Termination Charges (ETCs). Unless...

In this Paper we extend the standard human capital earnings function to include dispersion in the rate of return to schooling by treating the return as a random coefficient. One motivation is that if dipping further into the ability distribution has brought about the increase in supply of...

We investigate the determinants of the support for cannabis legalization finding a causal effect of personal experience with cannabis use. Current and past cannabis users are more in favor of legalization. We relate this to self-interest and inside information about potential dangers of cannabis...

Empirical models of differentiated product demand are widely used by both academics and practitioners. While these methods treat carefully the potential endogeneity of price, until recently they have assumed the number and characteristics of the products offered by firms are exogenous. This...