Title of article :
An empirical test of the asymmetric models on innovative activity: who invests more into R&D, the incumbent or the challenger?
Author/Authors :
Dirk Czarnitzki، نويسنده , , Kornelius Kraft، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Keywords :
Tobit with selectivity , Innovative activity , Patent races , Uncertainty , Incumbent versus entrant
Journal title :
Journal of Economic Behavior and Organization
Journal title :
Journal of Economic Behavior and Organization