Effects of N, P and K on yield, average price and output values of flue-cured tobacco in Ankang of Shaanxi province;

With the best regression of two factors of temperature and relative humidity(RH),the experiment studied the regularity of average price and rate of first class of flue-cured tobacco in different yellowing environment.

Securities' Equilibrium Price under Imperfect-Competition

Demand functions and decision-making behaviors of the bid participants are discussed and based on the asymmetric static games, the equilibrium price and the optimized quotation of bidders in bidding appraisal procedurement are forecast.

A linear contract provides incentives to the manager to work at acquiring information when the manager possesses market power,which affects the equilibrium price of securities in the market.

The paper dealt with the defect of present value accounting,discussed the average value,distribution and marginal value of forest and pointed out the problems of ecological construction that should be paid attention to.