A note on Kaleckian lags in the Solow model

Building on a contribution by Paul Zak, we consider the modified Solow model with a time lag introduced in the Kaleckian spirit. This model produces endogenous cycles that can be interpreted as economic fluctuations. For reasonable parameter values it can generate empirically relevant cyclic variations in output. We prove the existence of a Hopf bifurcation and a limit cycle solution in the model. We find that there is only one solution with a period longer than the production lag. Additionally we calculate the period of this cycle