breeding discus fish for profit Understand that these opportunities will empower people Time factor a transaction's expected time is a question worth considering. The differences between the two countries are significant because the basic national conditions and economic system of the two countries are fundamentally different. Planned economy and planned economy into market economy, the stage because the traditional pattern of economic and financial structure, imperative the mandatory administrative regulations directly effective, fast, accurate, coupled with the central bank's marketization operation ability is limited, the lack of experience, the benchmark interest rate to today still become society's widespread interest rate decision criteria. The fed is highly marketable, with each "federal funds rate" adjusting to market results after open market operations. In addition to the formal "perfect" in the new classical market concept, the new classical theory has not added new meaning to the classical theory. That is to say, under the new classical "perfect" mathematical model under the skin, it is still classical free laissez-faire order, "new" is "new" in the form. And the form of depth at the expense of perfect at the expense of the thoughts, general equilibrium model of fine arbitrarily abstract away the activities of the "personal pursuit to satisfy desires to promote social welfare" logic support. The fund's managing director Christine Lagarde said Christine Lagarde, in June 2016, voted to leave the European Union has an impact, the British economic growth this year and in other parts of the world economic growth. Famous British economist hicks and others argue that the above theory did not consider the factor of income, and therefore unable to determine the level of interest rates, in 1937, and puts forward the is-lm model on the basis of general equilibrium theory. It establishes a theory of interest rates and income at the same time that the four factors of savings and investment, money supply and monetary demand interact.