Keynes' principle of effective demand constitutes a pillar for Post Keynesians theories. But Keynes' presentation remains difficult to interpret, mainly because the aggregate demand function is based on entrepreneurs' expectations. The problem is then to demonstrate how these entrepreneurs...

This Symposium consists of individual comments by three authors on papers previously published by the other two (Allain, 2009, Hartwig, 2007 and Hayes, 2007) on the topic of Keynes’s principle of effective demand as set out in The General Theory. The Symposium includes updated versions of PKSG...

Keynes' principle of effective demand constitutes a pillar for Post Keynesians theories. But Keynes' presentation remains difficult to interpret, mainly because the aggregate demand function is based on entrepreneurs' expectations. The problem is then to demonstrate how these entrepreneurs...