profit maximazation On the basis of introducing marginal concepts and mathematical argumentation, neoclassical has established a formal "perfect" mathematical model for the neoclassical "laissez-faire order" : general equilibrium. The price is the most important independent variable in this model, which can also be called price mechanism. The process of achieving general equilibrium is also a process of social resources guiding the flow of prices, so the price mechanism regulates the allocation of social resources. The research analysed five years’ trading connection between 1000 UK individuals split evenly into three age-based groups: 18-30, 30-50 and 50+, while using highest age being over 80. The five years ended in October 09 and so covered bull and bear markets, the banking collapse of 2008 and the volatile 2008/9 markets. At the same time, the company also announced that it will acquire 450,000 tons/year calcium chloride unit and 49,000 tons/year calcium chloride plant of the giant chemical group of China, with 6402, 53.1 million yuan. Xinlian chemical and plasticizing plant realized the revenue of 3251, 86.30 million yuan respectively in January and November of 2017, achieving a net profit of 97 yuan, -3.27 million yuan. The acquisition can improve the self-balancing ability of hydrogen chloride and hydrochloric acid in the company, and it is expected to guarantee the operation stability of the industrial chain after the completion of the acquisition. Friends and colleagues gathered to applaud worthy winners across seven categories – and recognise the creativity and dedication which underpin the whole sector’s contribution to the economy, to society and to customers, staff and stakeholders. In the face of market failure, coase has given the opposite answer: external-utility problems can be solved by explicitly using the market, without government intervention. And zhang wuchang is more absolute, he said that there is no so-called external utility, there is only unclear property rights. Anyway, coase brought revolutionary innovation to market concepts. He made it clear that the key to the market was not the "price mechanism" of impersonal machinery, but the power of participants in economic activity. In 2017, the blockchain enters the public eye through bifurcation, CryptoKitties and ICO. Driven by investment opportunities and media attention, traditional businesses and consumers have begun to focus on the cryptocurrency and its underlying blockchain technology.