The concept of accounting income is called accounting income. According to the traditional view, the accounting income refers to the difference between the realized income and the corresponding expenses. It has the following characteristics: The basic economic unit of society in the primitive society of the clan, tribe, slave owners in the slave society, feudal society's family and the manual workshop, after the evolution of the form of this modern form in a capitalist society was born enterprise. A car that has been modified to transport specialized goods. t is more difficult to improve ability than to master knowledge. Profitability is dependent on ability, not knowledge, so you should understand why I say the ability to learn is the equivalent of trading profit. Ability can be divided into: the ability of market analysis, understanding of market performance ability, ability to sense the state of the market, the impact factors of market leading identification ability, reading ability in the subject matter of the charts, operation planning skills, and ability to execute. Any knowledge can be translated into its own ability only through its own concrete practice. At this stage, it is important to remain open and objective, and that is the principle that you can continue to learn and progress. The futures market moves forward through breaking rules rather than building market rules. This is an important feature of futures markets that are different from other markets. The futures market can only develop by maintaining uncertainty, rather than forming operation rules. Futures market is one of the most interesting feature is: the same information or trading tools on people who have different produce strange reaction, the same information or tools do not have uniqueness and correctness or authority, so, for trading, understanding of information and trading tool use is more important than the master information and tools themselves. Having a large amount of information and buying a large number of trading models will not help your analysis and trading profitability. The key is to see your understanding and application skills. The Christmas season is an occasion you will certainly wish to spend with your friends and family. It is not even the sharing of gifts that matters, although you cannot discount the wide smiles it brings. It is the presence of people you love while you celebrate the summer season?s highlight, Christmas Eve. You should be prepared with many activities that may continue the fun in the air and steer clear of what every host or hostess fears most, which is boredom. One of the wonderful activities you can do is to get everyone sing in unison each of the Christmas songs they know. 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.