Цитата из книги «An Inquiry into the Nature and Progress of Rent, and the Principles by Which It is Regulated»

produce of land be represented by the number six, and the landlord has one fourth of it, his share will be represented by one and a half. If the produce of land be as ten, and the landlord has one fifth of it, his share will be represented by two. In the latter case, therefore, though the proportion of the landlord's share to the whole produce is greatly diminished, his real rent, independently of nominal price, will be increased in the proportion of from three to four. And in general, in all cases of increasing produce, if the landlord's share of this produce do not diminish in the same proportion, which though it often happens during the currency of leases, rarely or never happens on the renewal of them, the real rents of land must rise. We see then, that a progressive rise of rents seems to be necessarily connected with the progressive cultivation of new land, and the progressive improvement of the old: and that this rise is the natural and necessary consequence of the operation of four causes, which are the most certain indications of increasing prosperity and wealth—namely, the accumulation of capital, the increase of population, improvements in agriculture, and the high price of raw produce, occasioned by the extension of our manufactures and commerce. On the other hand, it will appear, that a fall of rents is as necessarily connected with the throwing of inferior land out of cultivation, and the