HAVANA (Reuters) - Cuba is laying plans to move to a single currency, a reform that many feel is one of the toughest challenges facing President Raul Castro as he tries to kick-start the Communist country's moribund economy.
For years Cuba has had two currencies -- the peso (CUP), in which most wages are paid and local goods priced, and the convertible peso (CUC), used in tourism, foreign trade and some stores carrying imported goods.
