Interest rates are an important tool for regulating monetary policy, and they are also used to control economic growth, such as investment, inflation and unemployment. Reasonable interest rate plays an important role in the economic leverage of social credit and interest rate. Job lose is more common and greenies who are unemployed are pondering if their applications for loan modification will likely be approved. Actually, it is more challenging for unemployed homeowners to obtain their loans approved by lenders and the difficulty boosts the longer the homeowner continues to be without work. "If there is no allow most of the European Union oriented financial services agreement, the financial sector accounts for about 7% of GDP, but about 10% of tax revenue and 14% of the exports, may be affected by the special Britain will stay there," the report said. So what are these three factors? They are Cost-Per-Click's (CPC's); which is the sum of money Google pays in the market to a publisher after their ads are clicked by way of a visitor. Click-Through-Rates (CTR's); which is a percentage figure showing frequent AdSense ads are clicked divided by the quantity of unique visitors passing by having a particular site and also the third essential factor is traffic levels. 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.