(1) The opportunity cost approach is the one typically used in the valuation of voluntary labour time.

(2) Income approach, market comparison approach and cost approach are usual three basic methods for appraisal of real estate internal and abroad, having own theory foundation and use range.

(3) Based on train of thought under cost approach, this paper puts forward parameter - measured way.

(4) Finally, use of the cost approach can be rather detailed, especially when estimating replacement or reproduction cost. This detail can obviously be very time-consuming and expensive.

(5) The real cost approach has been largely superseded by the opportunity cost approach to international trade.

(6) The cost approach can also be applied to older properties given adequate data to measure depreciation.

(7) Finally, the cost approach can provide a basis for allocating penalties, specifically economic obsolescence.

(8) The discretionary - fixed - cost approach relies on management's judgment to determine the size of the work force.

(9) Herein lies one of the defects of the cost approach to setting transfer prices.

(10) The cost approach reflects market thinking because market participants relate value to cost.

(11) Like the sales comparison and income capitalization, the cost approach to value is based on comparison.

(12) Broadly, two approaches can be discussed: the traditional approach and the direct cost approach.

(13) Three basic appraisal methods acknowledged by the international are cost approach, income approach and market approach.

(14) But after comparing them, the author thinks that the user cost approach is better to calculate the self-value depreciation of the unrenewable resources.

(15) Numerical results showed that the model can overcome the defectiveness of market comparison approach, income present value approach and replacement cost approach.