Resumo:
Mathematical economics took much positive influence from classical mechanics, especially between the 1860s and the 1920s, and equilibrium was a prime target for imitation. After reviewing the main traditions of mechanics, I consider the history of its effect upon economics, I note three particular areas where this influence was not at all rapid; then I treat the place of mechanical principles, especially equilibrium, in the work of some major neo-classical economists. Finally, the merits of these influences will be assessed.