The purpose of this paper is to propose a composite innovation indicator derived from an econometric prediction of the likelihood of innovating and of the amount of innovation performed by a particular firm, given information on its characteristics and on the environment in which it operates....

This study focuses on a comparison and evaluation of models and estimators appropriate for time-use data. The tobit type I as well as different generalizations are used. According to our findings, a simple tobit I method can produce results that are similar and in some cases even better to the...