medium chain triglycerides oil The fund's fourth consultation underlines the enormous uncertainty facing Britain in the ambitious task of negotiating an exit from the eu. 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. Any transaction can be seen as a contract between the two parties. The so-called transaction cost can be seen as the cost of the transaction contract. According to Mr Coase and others, a type of transaction costs arise from the accidental factors that occur when a deal is signed. These incidental factors may not be written into the contract due to the fact that they could not be foreseen in advance, or although they could be foreseen, they could not be written into the contract due to too many factors. Another type of transaction costs is the signing of contracts and the cost of monitoring and enforcing contracts. During the depression, the rate of interest reduction, the expansion of money supply, stimulate economic development. During the expansion period, the interest rate increases, the money supply is reduced, and the economic development is suppressed. So, interest rates have a big impact on our lives.