for profit motive Adam Smith began as a logical starting point for "the personal gratification of the activity of personal gratification," and the market was "laissez-faire". The activities of the government completely unable to intervene in the pursuit of personal wealth, also don't have to worry about the laissez-faire altogether will create chaos, "an invisible hand" will be taking the laissez-faire personal economic activities arranged in perfect order. In other words, Adam Smith's market concept focuses on limiting government interference in individual economic activities. The wealth of nations also spends a considerable amount of time attacking the mercantilist policies that interfere with individual economic activity and limit individual economic power (property rights). Later classical economists stuck to their laissez-faire views. Canning's view Tax on the transfer of stamp duty equity. Equity transfer are two situations: one is in Shanghai and shenzhen stock exchange trading or managed enterprise equity transfer, the transfer shall be in accordance with the securities (stocks) stamp duty tax rate of 3 ‰ securities (stocks) stamp duty. The second is the transfer of equity in an enterprise which is not traded on the Shanghai or shenzhen stock exchange or in custody. The transfer shall be held on September 18, 1991 Why did yu 'ebao decline? Xpoint fills the cost and cost gap between high speed and high cost DRAM and low cost NAND. Does this technology engulf DRAM and NAND markets? Customers who purchase a large number of Xpoint chip/drives may purchase fewer DRAM chips and NAND chips/drives.