To help shed new light on the factors associated with the large differences among innovations in the percent of innovation costs devoted to R and D, detailed data were obtained concerning a sample of chemical innovations. A simple econometric model was used to test a number of tentative...

In this paper we present data concerning the accuracy of firm's forecasts of engineering employment and suggest a simple model that may be of use in improving their accuracy. The results, which pertain to 54 firms in the aerospace, electronics, chemical, and oil industries, should be of use to...

To what extent would the rate of development and introduction of inventions decline in the absence of patent protection? To what extent do firms make use of the patent system, and what differences exist among firms and industries and over time in the propensity to patent? These questions are in...

This paper presents the first R and D price indexes based largely on actual prices and expenditures reported by firms. The results, based on a carefully designed sample of about 100 firms, show that the GNP deflator, which is used in the official government R and D statistics, has tended to...

For decades, policy makers in both the public and private sectors have been concerned with the question: What is the impact of changes in federal R and D support on company-financed R and D expenditures? This is one of the first empirical studies at a micro level of this topic. The results,...

This paper is concerned with the rate of diffusion of flexible manufacturing systems, one of the most important industrial applications of information technology. Using data from about 175 firms, I analyze diffusion rates in Japan, Western Europe and the United States, a major purpose being to...

This study, based on detailed data obtained from carefully selected samples of about 200 Japanese and American firms, seems to be the first comprehensive empirical investigation of the differences between Japan and the United States in innovation cost and time. Whereas the Japanese have...

Erratum to "Firm's Forecasts of Engineering Employment" by Peter Brach and Edwin Mansfield, Management Sci. 28 (2, February) (1982) 156--160.

The evaluation of alternative locations for an automatic classification yard has become an important problem for railroad managements. Because of the lower classification costs in these yards and the importance of such costs, many railroads have installed these newer facilities. An automatic...