With the real success of the trump tax reform bill, investors in the short term focus more on whether the market has already digested this benefit. Poorly engineered activities confuse strong competitiveness with overt aggression. This should stop the goal of team development activities. A cohesive team that will work successfully together does not need aggression to achieve its goals. Such activities could be demeaning to folks who are often made to compete in a level that is largely meaningless inside the place of work. Before the law came into force, start-ups could only raise money from qualified investors, and everyone was eligible to become a start-up investor after the jobs bill came into force. In the 18th century, the western countries successively carried out the industrial revolution, the universal adoption of large machinery, laid the foundation for the establishment of factory system. In 1771, British man Richard arkwright1732-1792 founded the first cotton-yarn factory in the city of kron. In the 1930s and 1940s, the factory system was established in Britain, Germany and other countries. The main sex of factory system is: to carry out large-scale intensive labor; Using big machine to improve efficiency production; Implement the employment system; The division of labor is deepening and production is socialized. The establishment of factory system marks the real birth of enterprises. Michael Zezas, an analyst at Morgan Stanley, also said the tax legislation would be a boon to the market in the short term, but may not be able to make fundamental changes. The current flattening of the us Treasury yield curve shows that the medium-term slowdown in the us economy and the recession of 2019 are not going away. A tax reform would widen the fiscal deficit, possibly in the future and exacerbate cyclical risks in the economy. Including ambulances, fire engines, sanitation vehicles, TV and radio cars, airport operations, municipal construction projects, etc.