Page:Principles of Political Economy Vol 2.djvu/316

296 rable steadiness, while improvements in agriculture are made from time to time, and the knowledge and practice of improved methods become diffused gradually through the community.

The habits and requirements of the labouring classes being given (which determine their real wages), rents, profits, and money wages at any given time, are the result of the composition of these rival forces. If during any period agricultural improvement advances faster than population, rent and money wages during that period will tend downward, and profits upward. If population advances more rapidly than agricultural improvement, either the labourers will submit to a reduction in the quantity or quality of their food, or if not, rent and money wages will progressively rise, and profits will fall.

Agricultural skill and knowledge are of slow growth, and still slower diffusion. Inventions and discoveries, too, occur only occasionally, while the increase of population and capital are continuous agencies. It therefore seldom happens that improvement, even during a short time, has so much the start of population and capital as actually to lower rent, or raise the rate of profits. There are many countries in which the growth of population and capital is not rapid, but in these agricultural improvement is less active still. Population almost everywhere treads close on the heels of agricultural improvement, and effaces its effects as fast as they are produced.

The reason why agricultural improvement seldom lowers rent, is that it seldom cheapens food, but only prevents it from growing dearer; and seldom, if ever, throws land out of cultivation, but only enables worse and worse land to be taken in for the supply of an increasing demand. What is sometimes called the natural state of a country which is but half cultivated, namely, that the land is highly productive, and food obtained in great abundance by little labour, is only true of unoccupied countries colonized by a civilized