This book contains lectures delivered at Yale University in October, 1983, in memory of Arthur M. Okun, showing how Lord Kaldor relates his own views of economic process to those of Okun, particularly the theory of markets set in Okun's magnum opus, Prices and Quantities , posthumously published.
First two chapters are something everyone should be familiar with in regards to the problems with equilibrium and supply/demand frameworks. The last chapter on Cumulative Causation is easily the most interesting.