Although the purpose of investment is varied, the fundamental motivation is to pursue more investment income and realize the maximum investment appreciation. Considering the investment income in the investment forum of investment enterprises requires that the choice of investment scheme should be based on the size of investment income, select the scheme with certain investment income as the object, analyze the factors affecting investment income, and seek effective ways to improve investment income according to these factors and their direction and degree of action on investment scheme.

Second, investment risk.

Investment risk is manifested in the uncertainty of future income and value-added. The main factors inducing investment risk are political factors, enterprise investment approval process, economic factors, technical factors, natural factors and enterprise's own factors, and various factors are often combined to have an impact. Considering investment risk in investment is to weigh the relationship between risk and income, fully and reasonably predict investment risk, prevent and reduce the possibility of losses caused by investment risk to enterprises, and put forward reasonable strategies to avoid investment risk in order to minimize the risk of investment implementation.

Third, investment flexibility.

Investment elasticity involves two aspects: first, scale elasticity, that is, investment enterprises must adjust their investment scale according to their own capital availability and market supply and demand, or shrink or expand; The second is structural flexibility, that is, investment enterprises must adjust their investment structure in time according to changes in the market, mainly to adjust the existing investment structure, and only investment structure flexibility can be carried out.