This paper presents and extends the index function model of Karl Pearson (1901) that underlies all recent models in labor econometrics. In this framework, censored, truncated and discrete random variables are interpreted as the manifestation of various sampling schemes for underlying index...

In this article, I summarize Griliches’ contributions to economics and to applied econometrics.

This paper examines the performance of the JTPA performance system, a widely emulated model for inducing efficiency in government organizations. We present a model of how performance incentives may distort bureaucratic decisions. We define cream skimming within the model. Two major empirical...

This paper begins the synthesis of two currently unrelated literatures: the human capital approach to health economics and the economics of cognitive and noncognitive skill formation. A lifecycle investment framework is the foundation for understanding the origins of human inequality and for...

This paper examines the family income—college enrollment relationship and the evidence on credit constraints in post-secondary schooling. We distinguish short-run liquidity constraints from the long-term factors that promote cognitive and noncognitive ability. Long-run factors crystallized in...