This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent portfolios. We use the number of citations and oppositions to represent these characteristics. The investigation is based on survey and patent data from German companies. We find clear...

Entrepreneurship research has increased markedly over the past three decades. In this paper we conduct a large scale survey of the literature beyond a subjective perspective on what entrepreneurship research has comprised. We investigate what have been the intellectual structure and the...