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Working Paper
Computers, obsolescence, and productivity
This paper examines the role that computers have played in boosting U.S. economic growth in recent years. The paper focuses on two effects--the effect of increased productivity in the computer-producing sector and the effect of investments in computing equipment on the productivity of those who use them--and concludes that together they account for almost all of the recent acceleration in U.S. labor productivity. In calculating the computer-usage effect, standard NIPA measures of the capital stock are inappropriate for growth accounting because they do not account for technological ...
Working Paper
Prices for Local Area Network Equipment
In this paper we examine quality-adjusted prices for local area network (LAN) equipment. Hedonic regressions are used to estimate price changes for the two largest classes of LAN equipment, routers and switches. A matched model was used for LAN cards and the prices for hubs were inferred by using an economic relationship to switches. Overall, we find that prices for the four groups of LAN equipment fell at a 17 percent annual rate between 1995 and 2000. These results stand in sharp contrast to the PPI for communications equipment that is nearly flat over the 1990s.
Working Paper
Labor supply and personal computer adoption.
The positive correlations found between computer use and human capital are often interpreted as evidence that the adoption of computers have raised the relative demand for skilled labor, the widely touted skill-biased technological change hypothesis. However, several models argue the skill- intensity of technology is endogenously determined by the relative supply of skilled labor. The authors use instruments for the supply of human capital coupled with a rich dataset on computer usage by businesses to show that the supply of human capital is an important determinant of the adoption of ...
Working Paper
Gender and the Internet
This article examines whether there are differences in men?s and women?s use of the Internet and whether any such gender gaps have changed in recent years. The authors use data from several surveys during the period 1997 to 2001 to show trends in Internet usage and to estimate regression models of Internet usage that control for individuals? socioeconomic characteristics. They find that women were significantly less likely than men to use the Internet at all in the mid-1990s, but the gender gap in usage disappeared by 2000. However, women continue to be less frequent and less intense users of ...
Journal Article
Perspective: manufacturers should be liable when computer bugs leave consumers in the lurch
Auto makers are responsible for the safety and reliability of their cars. So why shouldn't software makers be held responsible for buggy computer programs?
Working Paper
Portable random number generators
Computers are deterministic devices, and a computer-generated random number is a contradiction in terms. As a result, computer-generated pseudorandom numbers are fraught with peril for the unwary. We summarize much that is known about the most well-known pseudorandom number generators: congruential generators. We also provide machine-independent programs to implement the generators in any language that has 32-bit signed integers-for example C, C++, and FORTRAN. Based on an extensive search, we provide parameter values better than those previously available.
Working Paper
A guide to the use of chain aggregated NIPA data
In 1996, the U.S. Department of Commerce began using a new method to construct all aggregate ``real'' series in the National Income and Product Accounts (NIPA). This method employs the so-called ``ideal chain index'' pioneered by Irving Fisher. The new methodology has some extremely important implications that are unfamiliar to many practicing empirical economists; as a result, mistaken calculations with NIPA data have become very common. This paper explains the motivation for the switch to chain aggregation and then illustrates the usage of chain-aggregated data with three topical examples, ...
Journal Article
Technological change
This Economic Letter summarizes the papers presented at the conference "Technological Change," held at the Federal Reserve Bank of San Francisco on November 14-15, 2002, under the joint sponsorship of the Bank and the Stanford Institute for Economic Policy Research. The papers are listed at the end and are available online http://www.frbsf.org/economics/conferences/0211/index.html
Working Paper
The role of semiconductor inputs in IT hardware price decline: computers vs. communications
Sharp declines in semiconductor prices are largely responsible for observed declines in computer prices. Although communications equipment also has a large semiconductor content, communications equipment prices do not fall nearly as fast as computer prices. This paper partly resolves the puzzle-first noted by Flamm(1989)-by demonstrating that prices for chips used in communications equipment do not fall nearly as fast as prices for those chips used in computers, and those differences are large enough to potentially explain all of the output price differences.