The investment in securities is conducive to improving the operation and management of enterprises, improving the economic and social visibility of enterprises and promoting the rationalization of enterprises' behaviors. In fact, value has its objective existence form and its subjective reflection form. Subjective value can be divided into two specific forms: values and emotions. Among them, values are people's understanding of absolute value, or people's understanding of value absoluteness. Emotion is the perception of relative value, or the relative understanding of value. Values (or emotional) and the value of relationship in essence is the relationship of subjective and objective: on the one hand, the objective value decision and restricts the subjective value, subjective value is to reflect the objective value, based on the objective value, and around the objective value fluctuates up and down; On the other hand, subjective value has certain relative independence, and has a certain reaction to objective value, which can induce, strengthen or restrict the objective value. 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. Republicans impact of tax legislation through congress may be particularly dangerous, for millions of middle-class and low-income families not only didn't get any good, but with the passage of time gradually cancel the income tax cuts. In addition, the republican plan would repeal Obama's personal mandate. According to the nonpartisan budget office, this would result in 13 million people losing their health insurance, with premiums rising 10 percent over the next decade. Not surprisingly, a recent Quinnipiac poll found only 29 percent of americans support the republican plan. After August 1987, for example, as the dollar fell, people rushed to buy sterling, the high-yielding currency, which rose from $1.65 to $1.90 in a very short time, up almost 20%. In order to limit the rise in the pound, the UK cut interest rates for several consecutive times between may and June 1988, falling from 10% to 7.5%, with the pound falling every time it cut interest rates. But the pound began to pick up again after the bank of England was forced to raise interest rates several times as the pound weakened too quickly and inflationary pressures increased.