Keynes's principle of effective demand constitutes a pillar for Post Keynesian theories. But Keynes's 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...

Post-Keynesian economists have quite recently begun to draw attention to the consumer debt. However, as they omit the principal payment, they implicitly assimilate this debt as perpetual loans. The goal of this article is mainly methodological. We first develop a ‘Keynesian’ overlapping...