The essence of economic value is human labor in the process of human economic products and relations. The value of the use value of creating products and the labor value of creating production relationship. The value concept in "das kapital" refers to exchange value, which is the essence of capital relations. Can't be replaced by local value Positive economic profit is sometimes described as excess profit. This may have a negative effect on the sales of Xpoint products. Some would say that the central bank's way of ensuring independence is to abandon macroprudential policies and micro-prudential policies and to take unconventional interventions in the securities market. But the crisis is an important lesson, macroeconomic and financial policies are closely connected, when the two tasks in the same institution, management by different commission, their coordination is the most effective. And because interest rates are low and uncertain, a crisis is coming, and unconventional policies will come back. According to the pantheon of macroeconomics Klaus weiss peterson (Claus Vistesen), which suggests that the management committee "is still not willing to" the strong growth prospects into the core of higher inflation forecasts.