The inflation is the big problem for people around the world that runs business or sell  something, especially importing country Why does it happen ? It is caused by the economic critical. For my idea, they should reduce the rate of importing tax, keep the price of goods and manage the national exchange rate. After the world Trade center building at the United States of America were attacked by the tourism world events seem to be  changed especially the world's economy and political condition. Iraq is the member of Organization of petroleum Exporting Country (OPEC), produces gasoline. the price of all was increased, because the supplies are decreased. So it effects strongly with the world's economy in particular for economy of oil importing country. For Cambodia the price of gasoline was increase from 2500 Riel to 4000 Riel per litter. An other one ,all the functionaries, students and motor taxi driver are complained  about the price of it that is the bad impact for their living.