With the adoption of the US dollar as its currency, El Salvador has lost control over monetary policy and must concentrate on maintaining a disciplined fiscal policy. GDP per capita is roughly only half that of Brazil, Argentina, and Chile, and the distribution of income is highly unequal. The trade deficit has been offset by annual remittances of almost $2 billion from Salvadorans living abroad and external aid. The government is striving to open new export markets, encourage foreign investment, modernize the tax and healthcare systems, and stimulate the sluggish economy.