To better understand the development of high technology industry in Texas, this monograph compares the high-technology industrial composition of Texas with that of California, Massachusetts, and North Carolina. Chapters examine interstate differences in high-technology industrial development by comparing (1) recent shifts in high-technology industry mix, (2) size distribution of firms, and (3) measures of locational specialization of labor, such as the ratio of production workers to scientists and engineers, levels of employee education, income distribution, and the comparative influence of education and work experience on earnings.