A little theory
It is time now to look at the fundamental forces which drive location. As we saw in the second chapter they do not by themselves determine land use on the ground. That is the result of the interplay of politics and locational forces, with location often losing out to politics. In the third chapter we noted how radically the demand for space could alter following technological change, and in the previous chapter we discussed value as a way of measuring locational demand. We are now ready to explore the fundamental forces which are at work beneath the surface. There are two of them and they are in conﬂict with each other.