In this article, we develop a methodology to estimate production functions characterized by multiple inputs and multiple outputs. Aggregate output is estimated assuming a piecewise-linear production possibility set and by measuring distance to the boundary using nonparametric techniques. The...

Policy makers and scholars have long been interested in teacher attrition, particularly in poor, urban schools. We investigate the determinants of teacher attrition in five large metropolitan areas in upstate New York. We focus on a teacher's decision to leave a school district or to leave...