Decomposing Productivity Growth in the U.S. Computer Industry

In this paper, we examine the sources of the productivity growth in the U.S. computer industry from 1978 to 1999. We estimate a joint production model of output quantity and quality that distinguishes two types of technological changes: process and product innovations. Based on the estimation results, we decompose total factor productivity (TFP) growth rate into the contributions of process and product innovations and scale economies. The results show that product innovation associated with better quality accounts for about 30 percent of the TFP growth in the computer industry. Furthermore, we find that the TFP acceleration in the computer industry in the late 1990s is mainly derived from a rapid increase in product innovation.COMPUTER, PRODUCTIVITY; PROCESS AND PRODUCT INNOVATIONS; HEDONIC PRICE

Information Technology Externalities: Empirical Evidence from 42 U.S. Industries

Using interindustry transaction in input-output tables, we examine Information Technology (IT) externalities in U.S. private industries over the period 1984-2000. Our empirical results show that computerization of an industry's customer and supplier industries reduces both labor and material costs of the industry. Moreover, cost savings driven by supplier industries are larger than those driven by customer industries. We also find that industries in the services sector enjoy more benefits from IT spillovers than industries in other sectors because of their high IT capital intensity and composition of interindustry transaction. Decomposition of total factor productivity (TFP) suggests that IT externalities can explain considerable parts of TFP growth, although possible mismeasurement of output in services industries leads to exacerbated technical changes of services industries.INFORMATION TECHNOLOGY; NETWORK EXTERNALITY; INPUT-OUTPUT TABLE; TOTAL FACTOR PRODUCTIVITY

Innovations and Technological Spillovers

innovations

Public R&D Policies and Cost Behavior of the U.S. Manufacturing Industries

taxation ; manufacturing ; research and development

Dynamic Factor Demand Models and Productivity Analysis

PRODUCTIVITY GROWTH; DYNAMIC FACTOR DEMAND; SPLILLOVER; R&D; TAX INCENTIIVES; CAPITAL UTILIZATION; DEPRECIATION RATE; MISSPECIFICATION TEST.

Efficiency and Productivity Growth Comparisons of European and U.S. Air Carriers : A First Look at the Data

air transport ; productivity

The Changing Structure of Cost and Demand for the U.S. Telecommunications Industry.

This paper formulates a multiproduct structural model to examine the evolution of structure of production and demand and the dynamic interaction between the two in the context of the U.S. telecommunications industry over an extended period, from 1935 to 1987.PRODUCTIVITY;TELECOMMUNICATIONS

Estimation of the Depreciation Rate of Physical and R&D Capital in the U.S. Total Manufacturing Sector

research and development ; manufacturing

Production, Financial Structure and Productivity Growth in U.S. Manufacturing

production ; productivity

RATES OF RETURN ON PHYSICAL AND R&D CAPITAL AND STRUCTURE OF THE PRODUCTION PROCESS: CROSS SECTION AND TIME SERIES EVIDENCE

production factors ; costs ; capital ; industry ; research and development