what is abnormal profit Money supply is determined by the central bank of exogenous variables, the demand for money depends on the liquidity preference of people, when people's liquidity preference to enhance tend to increase the money hold, so rates are determined by the liquidity preference in joint decision currency demand and currency supply; Loanable ZiJinLun combines the first two interest rate determinism, that interest rate is determined by the supply and demand of loanable funds, including the total savings and new bank money supply and demand including the total investment and new currency demand, interest rate decision depends on common commodity market and money market equilibrium Surplus value is created by employing workers in the process of direct production, but it must be transferred to the currency before it can be realized. Whether or not the goods can be sold and sold at what price, profits can be achieved and how much they can be achieved will depend on the specific conditions of supply and demand and market competition. In particular, capital goods of retrieval from the industry capital movement become the commercial capital, specific implementation of commodity value and surplus value function, and accordingly obtain business profits, make the relationship more complicated and more likely to cause mystification. In the process of circulation, some factors restricting the production process, or with, or to the conflict between capital and labor, into between capital and capital, pure relationship between buyers and sellers, and so on, all this will cover the production process with the difference between the circulation process, it is easier to put the cost price as the intrinsic value of the real goods, consider profit higher than the result of the sale of commodity value, the surplus value and commodity value contained in the implementation, in the process of circulation has been reversed expression is created from the sale. Because, the original business profits are exploited by industrial capital in the process of production to the part of the surplus value of transformation of form, but is considered in the process of circulation through the buy low sell high, produce, or paid by consumers upon. And class relations are distorted, business profits are reflect the commercial capitalist through industrial capitalists to hire laborers, the relationship between exploitation and exploitation were buried, and distortion of between capitalist and capitalist and capitalist with pure commodity trading relationship between the consumers. Mr Draghi said the positive news about eurozone growth meant that the bank's council was "increasingly confident" that inflation would strengthen over the long term and become "self-sustaining". But he added that the current policy needed to be maintained to "maintain inflation", reaching the ECB's target of close to 2 percentage points. The same is true of unconventional interventions in corporate bonds and mortgage-backed securities. Not surprisingly, the concept of central bank independence obviously help to specific financial institutions - and this time, the whole society are under unprecedented economic pressures - soon become politically toxic. In general, us interest rates fall and the dollar weakens. Us interest rates rise and dollar trends favour. A change in the price of U.S. Treasury bills, especially long-term Treasury bills, can help to predict the direction of the U.S. dollar. If investors think the us inflation is under the control, then under the existing Treasury bonds interest rate to attract, especially short-term Treasury bills, will attract investors, bond prices to rise.