This study brings together reliable and consistent data on the mining sector. It analyzes tin mining activities over the past eighty years, and includes production and price data. It provides details about the rising significance of tin mining in Bolivia, the events leading to the nationalization of the large mines in 1952, and an assessment of the performance of tin mining in the country. An attempt is made to quantify the effect of tin mining on the Bolivian economy. More specifically, the change in the level of domestic aggregate demand resulting from a change in tin output and a change in the international price of tin is measured. There is also some discussion of the fiscal impact of tin revenues and the backward and forward linkages resulting from mining activities. The report contains an analysis of the main factors, economic and institutional, that determine the price of tin. It also includes an assessment of the competitiveness of the various countries and mining methods using data for four benchmark years from 1971 to 1981.