The recent literature on the sources of economic growth has challenged the traditional growth accounting of the Solow model, which assigned a relatively limited role to capital deepening. As part of this literature, De Long and Summers have argued in two papers that the link between equipment...

This paper tests the expectations hypothesis in the market for commercial paper. Our main dataset, which is new to the literature, consists of daily indexes constructed from the actual market yields for nearly all commercial paper issued by U.S. corporations between January 1998 and August 2003....

This paper examines three questions motivated by previous research on semiconductors and productivity growth: Why did semiconductor prices fall so rapidly in the second half of the 1990s, why has the rate of price decline slowed since 2001, and to what extent are these price swings associated...

Two recent papers have made compelling cases that mismeasurement of prices of high tech products cannot explain the slow pace of labor productivity growth that has prevailed since the mid-2000s. Does that result indicate that mismeasurement of high-tech products has limited implications for...

The Producer Price Index (PPI) for the United States suggests that semiconductor prices have barely been falling in recent years, a dramatic contrast from the rapid declines reported from the mid-1980s to the early 2000s. This slowdown in the rate of decline is puzzling in light of evidence that...