We develop a flexible model to examine competitive conditions in the food retailing industry based on the Box-Cox transformation of the demand and industry equilibrium conditions. The impact of key technological and market developments on shifts in the competitive index is examined. Adoption of...

Event history models have become a dominant method of analysis in the study of international relations. Conventional event history models, however, retain the assumption that the effects of the covariates remain proportional to each other throughout the duration of the subject's phase....

The present contribution deals with models and statistical analysis of sequences of random events. The main characteristics of such a random point process is its intensity. We consider the case when observed data are grouped, i.e. when the numbers of observed events are summarized in discrete...

Presentation of the PLS regression