The Output Contributions of Computer Equipment and Personnel: A Firm- Level Analysis

45 Pages Posted: 19 Mar 2001 Last revised: 4 Apr 2015

See all articles by Frank R. Lichtenberg

Frank R. Lichtenberg

Columbia Business School - Finance and Economics; National Bureau of Economic Research (NBER); CESifo (Center for Economic Studies and Ifo Institute for Economic Research)

Date Written: November 1993

Abstract

This paper examines the output contributions of capital and labor deployed in information systems (IS) at the firm level during the period 1988-91 throughout the business sector, using two different sources of data on these inputs. Our production function estimates suggest that there are substantial excess returns to both IS capital and IS labor, although the size and significance of the excess returns to IS capital is larger. Computer capital and labor jointly contribute, or account for, about 21 percent of output, although only about 10% of both capital and labor income accrue to IS factors. Although IS employees accounted for a very small share of total employment by 1986, IS employment growth is estimated to have made a larger contribution to 1976-86 output growth than non-IS employment, due to the very rapid growth (16% per annum) of IS employment. The estimated marginal rate of substitution (MRS) between IS and non-IS employees, evaluated at the sample mean, is 6: one IS employee can be substituted for six non-IS employees without affecting output.

Suggested Citation

Lichtenberg, Frank R., The Output Contributions of Computer Equipment and Personnel: A Firm- Level Analysis (November 1993). NBER Working Paper No. w4540. Available at SSRN: https://ssrn.com/abstract=249505

Frank R. Lichtenberg (Contact Author)

Columbia Business School - Finance and Economics ( email )

3022 Broadway
504 Uris Hall, Dept. of Finance & Economics
New York, NY 10027
United States
212-854-4408 (Phone)
212-316-9219 (Fax)

HOME PAGE: http://https://www8.gsb.columbia.edu/cbs-directory/detail/frl1

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

CESifo (Center for Economic Studies and Ifo Institute for Economic Research)

Poschinger Str. 5
Munich, DE-81679
Germany

Here is the Coronavirus
related research on SSRN

Paper statistics

Downloads
48
Abstract Views
1,696
PlumX Metrics