The Great Leap Forward (GLF) disaster, characterized by a collapse of grain output, and the associated famine in China between 1959 and 1961, can be attributed to a systemic failure in central planning. Encouraged by unrealistic expectations for agricultural productivity gains from...

Farm households in modern environments engage in multiple productive activities. In this paper we formulate and estimate a profit maximization model in which human capital enhances earnings through both activity-specific effects and across-activity factor allocation. Our purpose is to decompose...

This paper studies the estimation of a semiparametric bivariate proportional hazard model from event time data under interval censoring. As a direct generalization of the bivariate exponential distribution of Marshall and Olkin, the model, on the one hand, controls for the effects of observed...

This short paper demonstrates two important results related to the estimation of competing-risk models under the proportional-hazards assumption with grouped duration data. First I show that the model with non-parametric baseline hazards is unidentifiable with only grouped duration data....

This paper demonstrates two important results related to the estimation of a competing risks model under the proportional hazards assumption with grouped duration data, a model which has become the canonical model for the termination of mortgages with prepayment and default as two competing...

In this paper, we study the initial-conditions problem, a complication associated with left-censored or interrupted spells in the econometric analysis of labor market transitions. In the presence of unobserved individual-specific heterogeneity, no consistent estimators have been previously...