owning atm machines profitable 6. The accounting benefit is bound by the prudent principle. According to the principle of prudence, when there are a variety of accounting methods to choose from an economic business of an enterprise, it should choose a method that neither overestimates nor depreciates the benefits. Enterprises manipulate profits to achieve homogenization of profits, most of which adopt the method of overestimating earnings, and the subjective selection of the period of value-added. "Manufacturing companies with complex and lengthy international supply chains, such as the automotive industry, could also face significant challenges. These developments could also have a significant impact on productivity growth. " Do not close yourself, do not imprison your thoughts, dare to deny yourself, and deny your past mistakes. To deny an error means to get it right. Through further study, what you get is no longer a matter of knowledge, but the improvement of cognitive ability, the improvement of analytical ability and the improvement of self-confidence, thus improving the operation ability. More than a decade ago, I learned that speculators are the buyers of market risk, buying the risks inherent in social and economic activities, and achieving profit by operating and managing risks. We are always unable to grasp the market correctly, not because we are stupid, but because we are the buyers and bearers of risk, and we are the footer of social economic risk. And society and business sell us the business risk. We take risks and more accurately, we generate losses to meet the risks of social and economic activities and maintain the normal operation of the social economy, which is the essence of the futures market. Essentially, individual speculators is equivalent to the asset management company, by buying risky assets to achieve the purpose of profit, which is you want to have change decayed for magical ability, to achieve such a request, your learning path will be endless. Ms lagarde said she recently to Britain and the European Union in the civil rights, Northern Ireland and financial settlement negotiations welcome breakthrough, but said, the final agreement was established to minimize the trade barriers, and to provide enough time to implement change.