Rent is the price of monopoly arising from the reduction to individual ownership of natural elements which human exertion can neither produce nor increase. Interest is not properly a payment made for the use of capital. It springs from the power of increase which the reproductive forces of nature and the (in effect) analogous capacity for exchange give to capital. The principle that men will seek to gratify their desires with the least exertion operates to establish an equilibrium between wages and interest. This relation fixed, it is evident that interest cannot be increased without increasing wages nor wages lowered without depressing interest. The law of interest is that the relation between wages and interest is determined by the average power of increase which attaches to capital from its use in its reproductive modes. The law of wages is that they depend upon the margin of production, or upon the produce which labour can obtain at the highest point of natural productiveness open to it without the payment of rent. This law of wages accords with and explains universal facts, and shows that where land is free, and labour is unassisted by capital, the whole produce will go to labour as wages. Where land is free, and labour is assisted by capital, wages will consist of the whole produce, less that part necessary to induce the storing up of labour as capital. Where land is subject to ownership and rent arises, wages will be fixed by what labour can secure from the highest natural opportunities open to it without the payment of rent. Where natural opportunities are all monopolised, wages must be forced by the competition among labourers to the minimum at which labourers will consent to reproduce. Nothing can be clearer than the proposition that the failure of wages to increase with increasing productive power is due to the increase of rent. The value of land depending wholly upon the power which its ownership gives of appropriating wealth created by labour, the increase of land values is always at the expense of the value of labour. And, hence, that the increase of productive power does not increase wages is because it does increase the value of land. It is the universal fact that where the value of the land is highest civilisation exhibits the greatest luxury side by side with the most piteous destitution.