For many countries, cheaper oil is helping boost economic growth. But if you're a struggling Caribbean nation dependent on energy subsidies from Venezuela, the crash in oil prices is not welcome news.    

Venezuela's heavily oil-dependent economy has been sent into a tailspin by the collapse of crude prices, which has starved the country for cash to pay for domestic energy subsidies and imported goods. With little foreign currency reserves left, the economy is contracting, inflation has soared and the government has resorted to rationing food and other consumer staples.