profit maximization in the short run In 2017, we have seen: Compression ratio But trump and republicans seem willing to take the risk. After all, by pushing the middle class to raise interest rates, they have already laid out plans for the 2018 and 2020 elections. From now on, they can boast about most family tax cuts. They are expected to peak in the run-up to the presidential election in 2019 and before the bill expires. There is no ambiguity in the objective of the concrete plan. For example, business sales managers intend to increase sales by 15 percent over the next six months, and he will formulate specific procedures, budget plans, and schedule schedules, which is the concrete plan. Guideline plans only some general guidelines and action principle, favors the actors free disposition, it points out that the key but don't limit actors on the specific target or specific action plan. For example, a specific plan to increase sales may require a 15 per cent increase in sales over the next six months, while a guidance plan may limit sales by 12 to 16 per cent over the next six months. Compared with the guidance plan, the concrete plan is easier to carry out, assess and control, but lacks the flexibility, and its requirements for clarity and predictability are often difficult to satisfy. During the depression, the rate of interest reduction, the expansion of money supply, stimulate economic development. During the expansion period, the interest rate increases, the money supply is reduced, and the economic development is suppressed. So, interest rates have a big impact on our lives. The income from the transfer of equity investment and the income tax treatment of losses The U.S. crude oil inventory unexpectedly fell 5.2 million barrels last week, pushing U.S. oil further higher, noted the zero hedge fund. U.S. crude stocks have declined for five consecutive weeks, while gasoline inventories have increased for five consecutive weeks. If there is a clear indication of an increase in the EIA Cushing crude inventory released on Wednesday (December 20), crude stocks could end the five consecutive decline.