Which signals are important in gaining attention in science? For a group of 1,371 scientific articles published in 17 demography journals in the years 1990-1992 we track their influence and discern which signals are important in receiving citations. Three types of signals are examined: the...

We use patent applications and their extensions filed by Italian Universities between 1965 and 2002 to analyze their responses to institutional and organizational changes on IPRs regulations. Our results show that the number of patents, as well as foreign extensions or direct applications for...

We develop an endogenous growth model with capital, labor and energy as production factors and three productivity variables that measure accumulated innovations for energy production, energy savings, and neutral growth. All markets are complete and perfect, except for research, for which we...

Compared with the amount of interest Launch Aid has generated over the years, disproportionately little factual data has informed public policy debate. Information entering the public domain has arrived in piecemeal fashion, resulting in considerable disparities between sources. While Launch Aid...

Great achievements in knowledge are produced by older innovators today than they were a century ago. Using data on Nobel Prize winners and great inventors, I find that the age at which noted innovations are produced has increased by approximately 6 years over the 20th Century. This trend is...

This paper examines R&D tax incentives in oligopolistic markets. We characterize the conditions under which tax incentives reach the socially desirable level of firm-financed R&D spending. The outcome of the market depends not only on the level of technological spillover in the industry but also...

This paper attempts to systematise the law and economics theory as it relates to intellectual property rights, while at the same time suggesting new perspectives for analysis. The standard literature on IPRs relies essentially on the thesis of the incentive to create and/or disclose new ideas....

Recognizing the critical role played by science and technology in the development of fuel cells, this article aims to characterize the evolution of the S&T knowledge bases of fuel cells over the nineties, using data on patents and scientific publications. The field of fuel cells is particularly...

We study all-pay contests under incomplete information where the reward is a function of the contestant's type and also of his effort. We analyze the optimal reward for the designer when the reward is either multiplicatively separable or additively separable in effort and type. In the...