Economic change, mortality and malthusian theory

Summary

Malthusian theory traditionally related mortality to economic performance. But Malthus's assumptions are subject to different interpretations. In most of them mortality is regarded as a function of income per head. When tested, however, they are generally found wanting. But these implications do not express fully Malthus's assumptions. A reformulation of Malthusian assumptions is offered, supported and related to research into mortality and economic performance. Our formulation is consistent with published research. From this interpretation testable consequences may be derived. And the reformulation, together with studies of fertility as an economic phenomenon, can serve as the basis for a modern economic theory of population.