The presence of nonconvexities does severe damage to conventional
theories of the firm and of the individual. The essential contribution
of location theory, however, is in a world in which there are such
nonconvexities. If resources are distributed evenly and the usual
convexity assumptions made, then economic activity would be distributed
evenly; there would be no concentration of pro- duction. Thus the
statement that is usually made, that the standard results carry over to
a world in which there is spatial choice, is too weak and fails to
capture the essence oflocation theory. Nevertheless, we must also
concede that, while the introduction of the spatial dimension is
interesting and fruitful when (perhaps only when) there are non-
convexities, space should not be thought of as a panacea whereby
problems- those associated with economies of scale, for example -can be
made to disap- pear. There is no guarantee, for example, that production
units will be operated in convex regions of their total cost curves,
even if they are constrained to oper- ate in a 'space economy'. These
considerations led to the conclusion that the role of spatial choice and
the determinants of such choice would be best analysed by case study.
This book is one such study. It is based on my doctoral dissertation at
the University of Cambridge, fmanced by a grant from the Social Science
Research Council.