Contrary to expectations, small- and medium-scale manufacturing enterprises in Colombia grew very fast during the 1970s--considerably faster than large industry--creating many jobs and aiding the country's economic health. The most detailed study to date of this growth, this book focuses on the metalworking and food processing industries to analyze the determinants of economic efficiency in small- and medium-scale firms, the extensive technological change that took place within them, and the nature of the entrepreneurs who directed them. The authors draw from the Colombian experience relevant lessons for other developing countries where such enterprises could also contribute to economic growth.