Digital Capital and Superstar Firms / Prasanna Tambe, Lorin Hitt, Daniel Rock, Erik Brynjolfsson.

Format:

Book

Author/Creator:

Tambe, Prasanna.

Contributor:

National Bureau of Economic Research.

Hitt, Lorin.

Rock, Daniel.

Brynjolfsson, Erik.

Series:

Working Paper Series (National Bureau of Economic Research) no. w28285.

NBER working paper series no. w28285

Language:

English

Physical Description:

1 online resource: illustrations (black and white);

Place of Publication:

Cambridge, Mass. National Bureau of Economic Research 2020.

Summary:

General purpose technologies like information technology typically require complementary firm-specific investments to create value. These complementary investments produce a form of capital, which is typically intangible and which we call digital capital. We create an extended firm-level panel on IT labor investments (1990-2016) using data from LinkedIn. We then apply Hall's Quantity Revelation Theorem to compute both prices and quantities of digital capital over recent decades. We find that 1) digital capital prices vary significantly over time, peaking around the dot-com boom in 2000, 2) significant digital capital quantities have accumulated since the 1990s, with digital capital accounting for at least 25% of firms' assets by the end of our panel, 3) that digital capital has disproportionately accumulated in a small subset of "superstar" firms and its concentration is much greater than the concentration of other assets, and 4) that digital capital accumulation predicts firm-level productivity about three years in the future.

Notes:

Print version record

December 2020.