George saw how technological and social advances (including education and public services) increased the value of land (natural resources, urban locations, etc.) and, thus, the amount of wealth that can be demanded by the owners of land from those who need the use of land. In other words: the better the public services, the higher the rent is (as more people value that land). The tendency of speculators to increase the price of land faster than wealth can be produced to pay has the result of lowering the amount of wealth left over for labor to claim in wages, and finally leads to the collapse of enterprises at the margin, with a ripple effect that becomes a serious business depression entailing widespread unemployment, foreclosures, etc.