하수관거정비 BTL 사업의 물가변동율과 지수조정율 방식과의 비교분석

Abstract

This research has been studied for realizing the unpractical total cost appropriated in "BTL (Build Transfer Lease) Businesses for Maintenance of Sewage Pipes in Jeju Special Self-Governing Province", in which the rate of price fluctuation for the construction investment is applied by GDP Deflator. There are 6 cases of complete construction places to illustrate the key points for this study in Jeju.

The consequence of this study has indicated that the standard index of GDP Deflator, using a fixed number, is quarterly reflected in the rate of price fluctuation. Thus, the indicated price by GDP Deflator could be much more changeable. On the other hand, there is the other method for calculating price fluctuation rate, Index Adjustment. The rate of price fluctuation by it, for "Financial Program from Government Business", is lower than by GDP Deflator, since some conditions are needed for Index Adjustment.

The main reason why the rate by Index Adjustment is lower than by GDP Deflator is that the total cost for a business, appropriated by GDP Deflator Index, could not be practical. In addition, price fluctuation is influenced strongly by Governments' Notification Date because of standard index, using the fixed number, of GDP Deflator. The rate of Index Adjustment is also influenced by the time from the standard index (Governments' Notification Date).

Because of this, this study, on the basis of "6 business cases of maintenance of sewage pipes" in Jeju Special Self-Governing Province, has been processed to comparing between applying GDP Deflator and using Index Adjustment to realize which one is practical and effective for budget reduction of a construction business.