represent a growth pressure on the housing supply due to job location. Furthermore, from the results presented in this study, factors such as venture capital, industrial incentives, amenities, and transportation accessibility were found to have very low or negligible association with the growth rate of high-technology firms. Other location factors, such as taxes, were negatively related. The research findings of this study tended not to support the product cycle model. On the basis of these findings, the present research suggests caution in using the product cycle model for interpreting and explaining the development of high-technology complexes. This study concludes that there may be a need to incorporate market, time. and placeoriented concept to future study that will contribute more to the understanding of hightechnology development so that communities seeking to attract high-technology firms can understand the stages of a company's growth, the products it makes, the type of work force it employs, and the attributes of the area. CHAPTER I high-technology firms, while others try to encourage new business start-ups through local innovation and business developments. Little consideration, however, has been given to the feasibility of this policy as it relates to the. plant and job creation potential of high-, technology firms and their locational characteristics. The objective of this research is to examine and analyze attributes of the regional economy that contribute to the start-up, closure, expansion, contraction, and net change of high-technology activity. It is hypothesized that the forces determining the birth rates of new firms are different from forces determining whether existing firms expand, contract, or close. This research utilizes the product life cycle theory and locational attributes of areas to identify characteristics associated with growth patterns of high-technology firms. This study postulates that from 1976 to 1984 the formation, expansion, contraction, closures, and net changes in the number of high-technology firms in 100 large U.S. metropolitan areas were related to some or all of the following variables: high-technology employment as a percent of total metropolitan employment, total employment, the number of venture capital firms, research and development expenditure as a percentage of sales, housing costs, tax effort (ratio of per capita taxes to per capita income), state corporate tax rates, average manufacturing wage rate, amount of industrial incentives, air transportation access, climate, effective property tax rates, and presence or absence of a unitary tax. It is further hypothesized that these relationships have not remained stable through time because these processes are subject to different forces such as competition and economic conditions. A descriptive analysis of the geographic variations in dependent variables, and tests of significance to determine if there are differences in values among U.S. census regions, were done. Petroleum refining Ordnance and accessories Engine...