Using a reduced form binary econometric model, we analyze the determinants of pharmaceutical companies entry decisions into new submarkets. Our sample includes data for pharmaceutical companies over the period 1987-1998 for seven countries. Estimation is done both at the aggregate level and at a...

In this paper, I illustrate the additional information that can be prodivided in estimating the lower bound (Sutton 1991, 1998) by using quantile regression. Quantile regression allows us to invesigate the influence of outliers. Previous lower bound have been performed using the simplex method....

Using a dataset on the subsector and geographical segmentation of 208 Pharmaceutical companies, a Bayesian panel probit is used to analyze the role of state dependency, size and achieved diversification in affecting entry decision. We properly account for unobservable heterogeneity in a context...