profit and loss online test Under the theoretical framework of the theory, the theory of commodity market equilibrium and the monetary market equilibrium of Keynesian theory are unified. Marx's theory of interest rate decisions from the perspective of the source and essence of interest, taking into account the institutional factors in the role of interest rate decisions of interest theory, its theoretical core is the interest rate is determined by the average profit margin. Marx believed that under capitalism, interest is a part of profit and a form of conversion of surplus value. It is a leading enterprise in the domestic fluorine chemical industry, and the recovery of refrigerant is conducive to the improvement of the company's performance. The new material and the electronic chemicals business continue to advance, this time together the big fund will accelerate the company electronic chemical material localization progress. We maintain the forecast of 0.53/0.62/0.71 per cent EPS for 2017-2019 and maintain a "buy" rating. Frances O 'grady, chief secretary of the UK federation of industry and industry, said: "this suggests that brexit uncertainty has damaged the household budget. Work and living standards must be a priority in determining the best choice for brexit. The government should maintain a single market membership at the negotiating table. "