Evidence of a modest price decline in US broadband services

摘要

In this paper, we construct a consumer price index for broadband services in the United States using over 1500 service contracts offered by DSL and cable providers from 2004 through 2009. This exercise frames a range of open questions about measuring price changes in a manner that informs policy discussions about US broadband services. We employ approaches used commonly for constructing a consumer price index by using a mix of matched-model methods and hedonic price index estimations to adjust for qualitative improvements. We find a quality-adjusted price decline, but the evidence points towards a modest decline at most. Our estimates of the price decline range from 3% to 10% in quality-adjusted terms for the 5-years period, which is faster than the BLS estimates for the last 3 years. In contrast to other innovative industries that experience rapid price declines, such as computers or integrated circuits, the modest price decline for broadband services raises many questions.