Post-Keynesian Economics denotes a loose grouping of economists who regard the insights of Keynes and Kalecki as the starting point for both a critique of conventional equilibrium analysis and the basis for a new macroeconomics based on the investment behaviour of the class of individuals who control capital and their savings behaviour as contrasted with that of workers. Among the major figures in this school of thought have been Joan Robinson, Nicholas Kaldor, Sidney Weintraub and Paul Davidson.