Income distribution and the multiplier: An exploration of nonlinear distribution effects in linear Kaleckian distribution and growth models

In this paper, I show that the income-autonomous demand multiplier of Keynesian-Kaleckian models is endogenous to changes in income distribution. This effect gives rise to non-linearity of distributional effects, even in basic models. Under certain conditions, an important consequence from the distribution-sensitive multiplier is that a higher wage share can have increasingly expansionary effects, which might even shift a profit-led investment regime to a wage-led one in the basic post-Kaleckian model. Surprisingly, the respective literature on distribution and growth largely ignored these features of Keynesian-Kaleckian macroeconomic models. After a theoretical discussion on the implications of the distribution-sensitive multiplier in basic closed- and openeconomy models, I present a counterfactual illustration based on empirical parameter estimations from the literature and the development of functional income distribution for selected EU countries. My analysis indicates that a rising profit share has put partial downward pressure on the wage-ledness of aggregate demand in many EU countries. These results stress the relevance of this particular form of path dependency for empirical research and policy debates on distribution and growth.