191. The major responsibilities of the Bank include the management of foreign exchange reserves on behalf of the government. The Bank ensures their safety and return by diversifying investments within a framework of acceptable risks. A major feature of the reserves management practice is to divide the reserves into sub-portfolios, namely, the Pula Fund (long-term) and the Liquidity Portfolio (short-term). The Bank’s policies for the management of the foreign exchange reserves can be summarized in terms of three main principles. In order of importance, these are safety, liquidity, and return. With respect to the long-term portfolio, the Pula Fund, return takes priority over liquidity, while safety continues to have the highest priority for both the Liquidity Portfolio and the Pula Fund. As of the end of 2001, the split between the Pula Fund and Liquidity Portfolio was 80 percent and 20 percent, respectively.