hedge fund profits 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. Cylinder work volume refers to the volume of gas swept by the piston from the top to the bottom, also known as single cylinder displacement, depending on the cylinder diameter and the piston stroke. Engine displacement is the total volume of working volume of each cylinder, usually expressed in milliliter (CC). Engine displacement is one of the most important structural parameters. It is more representative of engine size than cylinder diameter and cylinder number, and many indicators of engine are closely related to displacement. The current two-year and three-year accounts are 2.05 PCS and 2.25 PCS, and the market's leading accounts for the early years of the year are 1.6 PCS and 1.67 PCS. Abn amro believes that after a strong 2017, precious metals will face many headwinds at the start of 2018. The bank said rising dollar and bond yields would put downward pressure on gold and silver prices in 2018. Gold is expected to trade between $1,200 / $1,250 an ounce next year. "If there is no allow most of the European Union oriented financial services agreement, the financial sector accounts for about 7% of GDP, but about 10% of tax revenue and 14% of the exports, may be affected by the special Britain will stay there," the report said. Activity-based costing (ABC) is an effective management technique for assigning and manipulating the overhead costs. Overhead expense analysis and assignment can be achieved more accurate by utilizing ABC methods for a variety of products, for product expenses and profitability analysis and for appropriate distribution and control over the overheads. In his theory, money supply is controlled by the central bank and is an exogenous variable with no interest rate elasticity. At this point, monetary demand depends on people's psychological "liquidity preference".