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Discussion Paper
Own-Account IT Equipment Investment
This note considers a puzzle: why has information technology (IT) equipment investment in the National income and Product Accounts (NIPAs) been so weak since 2007 at the same time that financial reports indicate massive increases in capital expenditures by IT service companies?
Working Paper
Prices for Communications Equipment: Rewriting the Record
Communication equipment plays as large a role in high-tech investment as computers, yet prices for communication equipment have not been studied as extensively as prices for computers and electronic components. Prices for satellites, cell phones, and the ground stations for these systems--important components of a nation's communications infrastructure--are difficult to locate in official statistics. This paper develops new price measures for 16 types of communications equipment from 1963 to 2009. Indexes for some (e.g., cellular phone systems) experience declines of 15-20 percent per year, ...
Working Paper
How Fast are Semiconductor Prices Falling?
The Producer Price Index (PPI) for the United States suggests that semiconductor prices have barely been falling in recent years, a dramatic contrast to 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 the performance of microprocessor units (MPUs) has continued to improve at a rapid pace. Over the course of the 2000s, the MPU prices posted by Intel, the dominant producer of MPUs, became much stickier over the chips' life cycle. As a result of this change, we argue that the matched-model methodology ...
Working Paper
Does the United States have a productivity slowdown or a measurement problem?
After 2004, measured growth in labor productivity and total-factor productivity (TFP) slowed. We find little evidence that the slowdown arises from growing mismeasurement of the gains from innovation in IT-related goods and services. First, mismeasurement of IT hardware is significant prior to the slowdown. Because the domestic production of these products has fallen, the quantitative effect on productivity was larger in the 1995-2004 period than since, despite mismeasurement worsening for some types of IT?so our adjustments make the slowdown in labor productivity worse. The effect on TFP is ...
Discussion Paper
Prices for Data Storage Equipment and the State of IT Innovation
This note presents new estimates of price trends for data storage equipment, a key general-purpose technology that enables both emerging and mature IT applications.
Working Paper
ICT Services and their Prices: What do they tell us about Productivity and Technology?
This paper reassesses the link between ICT prices, technology, and productivity. To understand how the ICT sector could come to the rescue of a whole economy, we extend a multi-sector model due to Oulton (2012) to include ICT services (e.g., cloud services) and use it to calibrate the steady-state contribution of the ICT sector to growth in aggregate U.S. labor productivity. Because ICT technologies diffuse through the economy increasingly via purchases of cloud and data analytic services that are not fully accounted for in the standard narrative on ICT's contribution to economic growth, the ...
Working Paper
ICT Asset Prices : Marshaling Evidence into New Measures
This paper is a companion to our recent paper, "ICT Prices and ICT Services: What do they tell us about Productivity and Technology?" It provides the sources and methods used to construct national accounts-style price deflators for the major components of ICT investment--communications equipment, computer equipment, and software--that were presented and analyzed in that paper. The ICT equipment measures described herein were also used in Byrne, Fernald, and Reinsdorf (2016). This paper is a companion to our recent paper, "ICT Services and their Prices: What do they tell us about ...
Journal Article
Does Growing Mismeasurement Explain Disappointing Growth?
Slowing growth in U.S. productivity after 2004 is sometimes blamed on measurement problems, particularly in assessing the gains from innovation in IT-related goods and services. However, mismeasurement also occurred before the slowdown and, on balance, there is no evidence that it has worsened. Some innovations?such as free Internet services?have grown increasingly important, but they mainly affect leisure time. Moreover, the non-market benefits do not appear large enough to offset the effects of the business-sector slowdown.
Working Paper
Accounting for Innovations in Consumer Digital Services: IT still matters
This paper develops a framework for measuring digital services in the face of ongoing innovations in the delivery of content to consumers. We capture what Brynjolfsson and Saunders (2009) call "free goods" as the capital services generated by connected consumers' stocks of IT digital goods; this service flow augments the existing measure of personal consumption in GDP. Its value is determined by the intensity with which households use their IT capital to consume content delivered over networks, and its volume depends on the quality of the IT capital. Consumers pay for delivery services, ...