The conventional wisdom about Keynes's Principle of Effective Demand is that it states something about quantities. It is widely held that the Principle determines the levels of output and employment in a world not governed by Say's Law. This paper argues that the Principle of Effective Demand...

The Review of Political Economy (ROPE) welcomed the year 2009 with an issue in which the first two articles use an interesting yet not very popular modeling framework, namely the aggregate demand/aggregate supply (D/Z) model from Chapter 3 of Keynes’s General Theory. Unfortunately, as I intend...

The paper suggests a consistent interpretation for the much debated Z-footnote on pp. 55-56 of the General Theory and discards claims recently made in the literature concerning the importance of output heterogeneity for Keynes's macroeconomic approach. -- Keynes ; aggregate supply function ;...