Abstract
In this paper, a hypothesis about a market price of rent is presented. That may be summerized as follows; 1) House rents are widely distributed. 2) Maximum rent is decided by solvency of a tenant. 3) Minimum rent is decided by the lowest cost on management of tenement-house, such as, repair expenses, insurance against fire, the municipal property tax or so. In this case, it is important that ground rent, depreciation reserve and repair expense for future are not concluded. After that, it is proved that the hypothesis is correct by using results of some researches.
