Human Capital, Marginal Productivity of Factors and Regional Inequality;

This article established a model between the price, the marginal production cost, the exchange money volume of foreign money market by national bank and the exchange rate s alteration, which is based on the principle of maximum profit of national and international commodity production and the theory of the balance of international payments.

This text carries on preliminary deduction and calculation on the measurement of forest environmental externality by means of the externality theory,and put out formulae as the price of forest environmental resources means marginal production cost and marginal use cost subtract from the international price of the forest products log.