Goodwin's predator-prey model predicts clockwise cycles in the employment–distribution space. Qualitative evidence is provided in favour of nonlinear dynamic behaviour for a sample of 67 countries, some of which have cycles similar to those predicted by the model. Predicted centres lie outside...

The article searches for quantitative evidence in favor of an extended version of Goodwin´s predator-prey model of endogenous distribution-employment cycles for 16 countries. The model is extended to include several harmonics in both series. The model fits all the observations both within...