How can the demand for land be there when the asking price of the rent or purchase of the land is so high? This is the reason why there is so little opportunity for entepreneurs, they cannot manage to compete with the monopolists whose occupation and partial use of the land is without the need to pay the associated rents. Occupation of land (with the aim of speculation in its subsequent developments)without its use, drives up the price of the sites that are available for purchase or rental. Look around the cities and see what proportion of the land is unused. It varies between 20 and 50%!