This paper studies nonparametric identification in market level demand models for differentiated products. We generalize common models by allowing for the distribution of heterogeneity parameters (random coefficients) to have a nonparametric distribution across the population and give conditions...

One of the subjects that has focused the empirical work of many educational economists has been the public funding of privately run schools. In this paper we use a quasiexperimental approach in order to evaluate the effect of attending a Spanish publicly subsidised private school on some of the...

We examine properties of the LM test of overdispersion when the alternative is characterized by arbitrary correlated random effects. We first derive a result that a natural test to detect such arbitrary correlated random effects would take the form of the test of conditional moment restriction,...

"This book addresses the coordination of operations planning of supply chains involves simplifying complex decision problems into a hierarchy of mutually inter-dependent decision problems. It also provides insights and support executives concerned with the management of expertise, knowledge,...