This is a unique account of the role played by 58 figures and diagrams commonly used in economic theory. These cover a large part of mainstream economic analysis, both microeconomics and macroeconomics and also general equilibrium theory.

We ask if pure profits obtained in our earlier model might be dissipated by forces excluded. We consider the possibility that the profits will be converted into land rents and usurped by landlords and conclude this will not happen. Second, we consider new firms entering to drive existing firms...

We consider Gee's model of industrial location and prove analytically that, given Gee's assumption of price discrimination, firms always wish to locate in the centres of their markets. This contrasts the result for mill-price-plus-transport-cost pricing where firm locate in the centres of...

We argue that the effectiveness of capital as an entry barrier depends critically on its durability and that this aspect of capital has been largely ignored. We examine strategic decisions with respect to capital durability in two models. In a broad range of cases an active policy with respect...

On an infinitely-extensible plane (with uniform customer-density) the socially-optimal configuration of firms is a regular hexagonal lattice. Will the free market necessarily produce this configuration? We argue that the currently-accepted, affirmative answer has been erroneously derived from...

The paper is divided into two parts: one-dimensional markets and two-dimensional markets. Also, we develop both one and two-dimensional models. Within each, we distinguish (a) bounded, (b) unbounded but finite, and (c) unbounded, infinite spaces. Among other things, we show: in one dimension,...

On an infinitely-extensible plane (with uniform customer-density) the socially-optimal configuration of firms is a regular hexagonal lattice. Will the free market necessarily produce this configuration? We argue that the currently-accepted, affirmative answer has been erroneously derived from...