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...

The evolution of firms' investment behavior is interpreted by heterodox theories as the resultant of the financialization of the accumulation regime. The French School of Regulation thus introduces the notion of patrimonial capitalism. The strategies of productive and financial investments, and...

This paper analyses the response of labor input to technology shocks in an estimated two-stage production framework with both price and wage stickiness and stage-specific shocks to productivity. Our model features a vertical input-output structure with imperfect mobility of labors across stages....

Most studies on the green tax reform issue point out that environmental taxes exacerbate pre-existing tax distortions, thereby increasing the welfare costs associated with the overall tax code. As a result, the optimal environmental tax should lie below the Pigovian level (or marginal social...