Using rules inspired by the statistics literature (Rubin (1976), Robins, Rotnitzky, and Zhao (1994) and (1995)), we formulate simple assumptions on the stochatic process by which firms or individuals exit from samples. Based on these hypotheses, we show that a simple adaptation of the GMM...

In this article we evaluate the contribution of computers to the growth of value-added during the last 15 years in France. Following North American studies, we use traditional growth accounting methods to assess the relative size of two types of contribution : on the one hand the effect of...

In this paper we study the influence of financial constraints on the investment behavior of French firms by estimating the Euler equation for investment on a large panel of firms over the period 1986-1994. In particular we emphasize the impact of the firm's level of collateral on its external...

The aim of this paper is to study the relationship between advertising and sales of French manufacturing firms. First, we use a simple theoretical model compatible with past econometric studies of sales and advertising, and extend it to dynamics. We show that the models that do not account for...

The purpose of this paper is to examine how the Solow residual relates to innovation at the firm level. We estimate two kinds of relationships. The first relationship explains innovation output from innovation inputs. The second relationship relates TFP growth to innovation output.