This paper proposes a new approach to dealing with unobserved heterogeneity in applied research using the binary logit model with cross-sectional data and short panels. Unobserved heterogeneity is particularly important in non-linear regression models such as the binary logit model because,...

Productivity dispersion across firms is large and persistent, and worker reallocation among firms is an important source of productivity growth. The purpose of the paper is to estimate the structure of an equilibrium model of growth through innovation that explains these facts. The model is a...

Dynamic discrete choice panel data models have received a great deal of attention. In those models, the dynamics is usually handled by including the lagged outcome as an explanatory variable. In this paper we consider an alternative model in which the dynamics is handled by using the duration in...

Estimates of the structural parameters of a job separation model derived from the theory of on-the-job search are reported in this paper. Given that each employer pays the same wage to observably equivalent workers but wages are dispersed across employers, the theory implies that an employer's...

In this paper we study a risk averse worker's optimal savings and job-search behavior as she moves back and forth between employment and unemployment. Recent empirical findings suggest a negative association between a risk averse worker's search effort and wealth. We show that additively...

This paper discusses the determinants of the retirement decision and the implications of retirement on economic well-being. The main contribution of the paper is to formulate the role of individual heterogeneity explicitly. We argue that individual heterogeneity in 1) productivity of market work...

We describe the statistical model used for profiling new unemployed workers in Denmark. When a worker - during his or her first six months in unemployment - enters the employment office for the first time, this model predicts whether he or she will be unemployed for more than six months from...

This paper applies revealed preference theory to the nonparametric statistical analysis of consumer demand. Knowledge of expansion paths is shown to improve the power of nonparametric tests of revealed preference. The tightest bounds on indifference surfaces and welfare measures are derived...

I show that conventional estimators based on the consumption Euler equation, extensively used in studies of intertemporal consumption behavior, produce inconsistent estimates of the effect of children on consumption if potentially binding credit constraints are ignored. As a more constructive...

The model of competing sellers in McAfee (1993) is applied to a labor market environment with heterogeneous workers, who differ by outside option and skill type, and heterogeneous firms, who differ by the amount of output produced when matched to each possible worker type. We derive both a...