Using a large panel data set we investigate whether works councils act as sand or grease in the operation of German firms. Stochastic production frontier analysis indicates that establishments with and without a works council do not exhibit significant differences in efficiency.

In a recent survey, Frege (2002) concludes that economic analysis of the works council has reached a `dead end´. The present treatment offers a different conclusion based on a more encompassing review of the evidence. It will identify three distinct phases in the economic analysis of...