In this paper we discuss necessity and opportunity entrepreneurship. We use panel data to analyze how these two types of entrepreneurs differ in general, and in their ability to discover and exploit entrepreneurial opportunities. We find that the opportunities ex-ploited by opportunity...

What factors shape an individual’s opinion on entrepreneurs? How do these factors differ across countries? This paper analyzes the relationship between socialist history and individuals’ opinions on entrepreneurs. Using a large-scale micro-level dataset from 30 European countries, we find...

Chinese university patenting has gained importance in recent years. Using a comprehensive dataset of university patents by 155 leading Chinese universities from 1991 to 2009, our study pursues two objectives: First, we analyze the quantity and quality of patents filed by leading Chinese...

Little is known about the relation between validated psychiatric symptoms scores and the entrepreneurial decision. Building on the Person-Environment (P-E) fit literature and using data of over 10,000 students, we test whether individuals with higher levels of attention deficit and hyperactivity...

Although they represent a sizable occupational group, little is known about family employees. Using utility theory and the theory of compensating wage differentials, we hypothesize that family employees have higher levels of job satisfaction and lower wages relative to regular employees. We...

A series of field and laboratory experiments were conducted in which single-sex groups of male or female students competed in different intellectual tasks to earn money or university grades (N = 291). The supervisor of these groups was one of several young and attractive males or females. The...

Research has shown that financial markets value trademarks. However, most firms’ trade-mark portfolios are not loose agglomerations of intellectual property (IP) rights. Often, a firm’s trademarks can be decomposed into groups of related trademarks (trademark families). This study identifies...

Network externalities spur the growth of networks and the adoption of network goods in two ways. First, they make it more attractive to join a network the larger its installed base. Second, they create incentives for network members to actively recruit new members. Despite indications that the...

We analyze the effect of peer influence on the diffusion of an innovative network good, argu-ing that the adopters of a network good have an incentive to convince others to purchase the same product because their utility depends on the number of other users. This peer-effect influences...

The identification of ecological innovation and ecologically innovative firms is important for understanding the role of innovation and technology in the transition to a greener economy. Information from patent and trademark data offers an objective, transparent, fast, and cost-effective way to...