Book excerpt: Clusters are geographic concentrations of interconnected companies, specialized suppliers, service providers, and associated institutions in a particular field that are present in a nation or region. The development and upgrading of clusters is an important agenda for governments, companies, and other institutions. Cluster growth initiatives are an important new direction in economic policy, building on earlier efforts in macroeconomic stabilization, privatization, market opening, and cost reduction related to doing business. Comparing High Technology Firms in Developed and Developing Countries: Cluster Growth Initiatives is the leading source of information for readers interested in this field of study as it promotes scientific discussion on policies and practice of cluster growth, as well as covers the emerging research topics which are going to define the future of the management of technology. Furthermore, this book demonstrates the effectiveness and efficiency of technology policy based on observations of differential growth rate of high technology firms in clusters, and explores the factors that explain superior performance of high technology firms to contribute the improvement of technology policy in both developed and developing countries.