2010 Volume 75 Issue 655 Pages 2185-2190
When one owner of the wooden building reconstructs to the fireproof building, the expectation of the profit of the owner is theoretically obtained, and the possibility condition of reconstruction is shown. Furthermore, it is shown that the profit expectation of owner who does not reconstruct is positive.
It is shown that the possibility of reconstruction to fireproof urban district increases if the owners of the free ride are taxed, and the owner of reconstruction building is supported.