... solutions of both systems: solutions on which consumption and both kinds of capital are growing at constant percentage rates, the prices of the two kinds of R.E Lucas, Jr., On the mechanics of economic ... titled the lectures 'On the Mechanics ' rather than simply 'The Mechanics of Economic Development' At some point, then, the study of development will need to involve working out the implications of ... from the observation that a city, economically, is like the nucleus of an atom: If we postulate only the usual list of economic forces, cities should fly apart The theory of production contains...