This paper shows the importance of technological synergies among heterogeneous firms for aggregate fluctuations. First, we document six novel empirical facts using microdata that suggest the existence of important technological synergies between trading firms, the presence of positive...

Does the impact of environmental regulation differ by plant vintage and technology? We answer this question using annual Census Bureau information on 116 pulp and paper mills' vintage, technology, productivity, and pollution abatement operating costs for 1979-1990. We find a significant negative...

We explore the response of employment (unemployment) skill differentials to skill-biased shifts in demand touched off by the new and spreading technologies. We find that skill differentials in unemployment follow at least in part the same pattern as skill differentials in wages: They widen...

The real business cycle literature has largely ignored the empirical question of what role technology shocks actually play in business cycles. The observed procyclicality of total factor productivity (TFP) does not prove that technology shocks are important to business cycles, since demand...

Considerable effort has been devoted in recent years to the description of wage structure. This research has documented a rising return to education, unobserved skill, and work experience, but there is little research into causes of the change in structure. This paper seeks to fill the gap by...

This paper explores changes in university patenting behavior between 1965 and 1988. We show that university patents have increased 15-fold while real university research spending almost tripled. The causes of this increase are unclear, but may include increased focus on commercially relevant...

We survey research on the relationship between technology and trade. We begin with the old literature, which treated the state of technology as exogenous and asked how changes in technology affect the trade pattern and welfare. Recent research has attempted to endogenize technological progress...

In this paper we estimate variants of a labor demand equation derived from a (restricted variable) cost function in which "experience"on a technology (proxied by the mean age of the capital stock) enters "non-neutrally." Our specification of the underlying cost function isbased on the hypothesis...

This paper presents an international comparison of R&D activities in basic and applied research. The commonly-held view that Japan is not spending much on basic technology development cannot be empirically substantiated from the study of the historical trends. However, the fact that in the...

This paper studies the effects of university STEM education on innovation and labor market outcomes by exploiting a change in enrollment requirements in Italian STEM majors. University-level scientific education had two direct effects on the development of patents by students who had acquired a...