In the past several decades, the U.S. economy has witnessed a number of striking trends that indicate a rising market concentration and a slowdown in business dynamism. In this paper, we make an attempt to understand potential common forces behind these empirical regularities through the lens of...

In the past several decades, the U.S. economy has witnessed a number of striking trends that indicate a rising market concentration and a slowdown in business dynamism. In this paper, we make an attempt to understand potential common forces behind these empirical regularities through the lens of...

Technological imitation may play a crucial role in motivating firms to innovate. However, theoretical predictions and empirical findings on the role of imitation have not yet reached a consensus. One major gap in the previous studies is that the empirical tests are based on samples consisting of...

This study investigates the relationship between product market competition and the market value of innovation using firm-level patent data of US firms over the period 1977-2005. We find that there is an inverted U-shaped relationship between competition and the value of innovation. Furthermore,...

Scientific and technological innovations by scientists are critical to the long-term economic health of the U.S. However, anecdotal evidence from space exploration, high energy physics and biotechnology suggests that the U.S. might no longer be able to retain or attract such talent at previous...

Regulatory reform efforts in a broad range of industries have resulted in increased importance of competitive forces as a means to allocate resources and improve economic efficiency. A number of indicators suggest that such forces have been stronger in the United States than in most other OECD...

We build a new concordance between the NBER Patent Data and US Census micro-data, and use it to examine what happens when firms patent. We find strong evidence that increases in patent stock are associated with increases in firm size and scope as well as with changes in factor intensity. We find...

Patent protection was introduced for plant biotechnology in the United States in 1985, and it affected crops differentially depending on their reproductive structures. Exploiting this unique feature of plant physiology and a new dataset of crop-specific technology development, I find that the...

In the past several decades, the U.S. economy has witnessed a number of striking trends that indicate a rising market concentration and a slowdown in business dynamism. In this paper, we make an attempt to understand potential common forces behind these empirical regularities through the lens of...

In the past several decades, the U.S. economy has witnessed a number of striking trends that indicate a rising market concentration and a slowdown in business dynamism. In this paper, we make an attempt to understand potential common forces behind these empirical regularities through the lens of...