As hicks income concept did not specify what is called "equal wealth", and thus the income concept formed the basis of many debates concept, and the theory of accounting earnings, especially the capital preservation theory has a great influence. In accounting, people used to call "maintaining the same level of affluence" as capital preservation. Keloid scars are some in the most unsightly types of scars you can become victim to. These raised scars are large and irregular shaped, often growing well after dark original bounds in the wound and rarely ever subsiding independently. They are reddish purple, smooth, and shiny making people desperate to take them off. There are various goods that falsely claim keloid removal and lots of people may turn to believe that a good solution just doesn't exist. However, keloid scar removal is not impossible! But first you have to find the best treatment. But even at its lowest point, interest rates were just 0.18 percentage points higher, not a quarter-point rise in interest rates. 7. Efficiency. The efficiency of the plan mainly refers to the time and economy. The international monetary fund has strongly defended its gloomy forecast of the UK after brexit, saying a warning of a slowdown in growth is imminent. Economic profits in perfect competition and monopolistic competition market has a special purpose, a positive profit can attract more enterprises to enter the market, increasing competition and push the market equilibrium price low, exclude some enterprises lack of competitiveness in the market, to achieve long-term equilibrium; On the contrary, negative economic profit can eliminate some of the original enterprises in the market, because the supply is reduced, the market equilibrium price will be pushed up, and the long-term equilibrium will be achieved. The result of the two cases is that economic profits disappear from each manufacturer and the manufacturer's total income is at the lowest point of average cost. If classical economists have interpreted the "market" as "laissez-faire", coase has answered the question of how to achieve "laissez-faire" or "price mechanism".