During the last three decades, the Dominican economy, formerly dependent on the export of agricultural commodities (mainly sugar, cocoa and coffee), has transitioned to a diversified mix of services, manufacturing, agriculture, mining, and trade. The service sector accounts for almost 60% of GDP; manufacturing, for 22%; tourism, telecommunications and finance are the main components of the service sector; however, none of them accounts for more than 10% of the whole. The Dominican Republic has a stock market, Bolsa de Valores de la Republica Dominicana (BVRD). and advanced telecommunication system and transportation infrastructure. High unemployment and income inequality are long-term challenges. International migration affects the Dominican Republic greatly, as it receives and sends large flows of migrants. Mass illegal Haitian immigration and the integration of Dominicans of Haitian descent are major issues. A large Dominican diaspora exists, mostly in the United States, contributes to development, sending billions of dollars to Dominican families in remittances.