Jstor: Jstor features a tremendous extent of scholastic diaries filtered into its databases, about-facing numerous years to give for your requirements the particular best research in humanities, sciences and numerous different controls. To get to Jstor you should be on your own college organize, or logged in remotely into it with whether staff or scholar ID. 3. The role of securities investment 1. Principles of securities investment Famous British economist hicks and others argue that the above theory did not consider the factor of income, and therefore unable to determine the level of interest rates, in 1937, and puts forward the is-lm model on the basis of general equilibrium theory. It establishes a theory of interest rates and income at the same time that the four factors of savings and investment, money supply and monetary demand interact. To avoid competition, the company plans to transfer the existing electronic materials business 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.