saddle oil "British shoppers more savvy than ever before, and ready to search the best deals on the net, the gimmicks and discount stores provide more and more sensible, many people now realize that may not be as they first appear. Recently, the yield of celestica monetary fund balance treasure has attracted the attention of investors, since August, balance of treasure yields falling, so far, the balance of monthly average yield has fallen below 4%. In the week ended Dec. 15, U.S. crude stocks fell 520 barrels to 438.7 million barrels, the API said, with analysts predicting a decrease of 3518,000 barrels. Cushing's crude inventories rose by 70,000 barrels. Modern economy, the interest rate as the price of money, not only restricted by many factors in the economic and social, and changes in interest rates to have a great impact on the economy as a whole, as a result, modern economists are studying the interest rate decision problem, pay special attention to the relationship between the variables and the balance of the economy as a whole, the interest rate decision theory has experienced the classical interest rate theory, Keynes's interest theory, interest rate in loanable funds theory and is-lm analysis as well as the contemporary evolution of dynamic interest rate model, the development process.