SETTING fuel prices is both easy and difficult. Easy if one looks at fuel prices in Singapore where prices are about Rp3,500 per liter. Or in the US where the price of gasoline fluctuates at around US$2 per gallon. As one gallon equals 4.54 liters, the average price of gasoline in the US is Rp4,700, based on an exchange rate of Rp11,000 to the US dollar. The price of gasoline in the US fluctuates quite a lot because of the influence of pric