Abstract
To prevent a recurrence of the problem that a structural statement in the building is camouflaged, the government revised building code in 2007. The law to obligate funds securing by deposit or insurance to compensate for house wound to builder and real estate agent is enforced as the one. In this thesis, first of all, difference of attention level by deposit and insurance is taken up. It has been understood from the theoretical model that the entire attention level rises when depositing it. The premium of a major entrepreneur who selected the deposit in the market was forecast by condominium market price of Tokyo metropolitan area. The premium was observed by a major entrepreneur. However, it was not able to be specified the premium by funds' having been secured. It is guessed that the consumer finds the quality control the premium. To make the residential real estate market better, a necessary matter was examined by the deposit and insurance.
