The paper analyzes the existence and impact of …nancing constraints as a possibly serious obstacle to innovation by …rms. Direct measures of …nancing constraints are employed using survey data collected by the Banque de France and Eurostat, which overcomes the problems with the traditional...

The paper analyzes the existence and impact of financing constraints as a possibly serious obstacle to innovation by .rms. Direct measures of financing constraints are employed using survey data collected by the Banque de France and the European Commission, which overcomes the problems with the...

The paper analyzes the existence and impact of …nancing constraints as a possibly serious obstacle to innovation by …rms. Direct measures of …nancing constraints are employed using survey data collected by the Banque de France and Eurostat, which overcomes the problems with the traditional...

This paper shows how a simple modi…fication of estimators based on the RandomEffects principle can preserve the consistency and asymptotic efficiency of the methodin panel data despite non-ignorable persistent heterogeneity driven by correlationsbetween the heterogeneity and the regressors. The...

The paper discusses the major identi…fication issue of coherency conditions in LDVmodels with endogeneity and flexible temporal and contemporaneous correlations inthe unobservables. Conditions for coherency as discussed in the existing literatureare reviewed and shown to be rather esoteric. Two...

This paper studies the distribution of the classical t-ratio with datagenerated from distributions with no finite moments and shows how classical testing isaspected by bimodality. A key condition in generating bimodality is independence of theobservations in the underlying data generating...