We examine the timing of firms' operations in a formal model of labor demand. Merging a variety of data sets from Portugal from 1995-2004, we describe temporal patterns of firms' demand for labor and estimate production-functions and relative labor-demand equations. The results demonstrate the...

We examine the timing of firms operations in a formal model of labor demand. Merging a variety of data sets from Portugal from 1995-2004, we describe temporal patterns of firms demand for labor and estimate production-functions and relative labor-demand equations. The results demonstrate the...

Merging several data sets from Portugal from 1986-2004 with a cross-section on the same firms for 003 that gives information on work timing, we describe temporal patterns of firms’ demand for labor and estimate production functions. The results demonstrate the existence of substitution of...

This paper examines the interplay of environmental policies with trade policies (tariffs) in a context of bilateral trade and imperfect competition.

A two factor production function with a variable elasticity of substitution is considered. The note describes the relation between the elasticity and the behavior of the marginal products and the output per unit input as the factor ratio approaches zero or infinity.