Research Database

This article analyzes Keynes’s “Economic Possibilities for our Grandchildren”—an essay presenting Keynes’s views about economic growth into the 21st century—from the perspective of modern growth theory. I find that the implicit theoretical framework used by Keynes to form his expectations about the 21st-century world economy is remarkably close to modern growth models, featuring a stable steady-state growth path driven by technological progress. On the other hand, Keynes’s forecast of employment in the 21st century is far off the mark, reflecting a mistaken view that the income elasticity of leisure is much higher than that of consumption.

Staggered price and staggered wage contracts are commonly viewed as similar mechanisms in generating persistent real effects of monetary shocks. In this paper, we distinguish the two mechanisms in a general equilibrium framework. We show that, although the dynamic price setting and the dynamic wage setting equations are alike, a key parameter governing persistence is linked to the underlying preferences and technologies in different ways. Under the staggered wage mechanism, an intertemporal smoothing incentive in labor supply creates a real rigidity that is absent under the staggered price mechanism. Consequently, the two have different implications on persistence. While the staggered price mechanism by itself is incapable of, the staggered wage mechanism has a great potential in generating persistence.