The basic argument is the following. Governments already have economic planning bureau’s - the US for example have the Council of Economic Advisers to the President. [6] Current forecasts are conditional on the assumption that the government will do as planned and promised. Such forecasts often fail, and can be forecasted to fail if one takes an independent position. Proper forecasting requires that the economic adviser not only has a scientific attitude, but also a scientific position, and is able to tell and indeed tells the public that plans or promises will fail if there is scientific reason for thinking so. Given the experience of the 20th century, it appears that strong constitutional safeguards are required to provide for this public function. Hence an Economic Supreme Court. Keynes (1936) already formulated a ‘general theory’ for political economy. Keynes subsumed the ‘classical’ approach as a special case. [7] Keynes’s theory is rich in many respects and poor in other. On the poor side: Keynes’s book is not exact on many issues, and proper models like the IS-LM model were only developed by Hicks, Meade and others. Samuelson (1947) presented the first integration of both the competitive model and the utility maximising calculus, only then giving body to the notion of ‘classical’. [8] However, on the rich side: Keynes’s book was and still is a source of inspiration for new research angles. Note that Samuelson coined the phrase ‘neoclassical synthesis’ for ‘his’ conceptual integration of classical processes at the micro level and Keynesian processes at the macro level. This synthesis endures till today, as e.g. Colignatus (1990a), Blanchard (1999) and Krugman (1999) acknowledge. It is important to note, though, that Samuelson’s phrase is a bit awkward, since Keynes himself already proposed such synthesis - he namely did not abandon micro-economics. It would be wrong to associate Keynes only with the macro-economic leg of the synthesis. Thus the neoclassical synthesis is actually the Keynesian synthesis itself. But we may as well use the phrase ‘neoclassical synthesis’, if only to acknowledge the role of others. [9]