One example is Keynes. As an economist, Keynes emphasised the economic content of his analysis: notably his findings on the peculiar role of money in the economy. His observation is firstly that money is both a medium of exchange and a store of value, and secondly that storage value depends upon expected value: and then his analysis on expectations takes off. In retrospect the force of Keynes’s analysis is a bit less ‘economics’ than he thought, and has more to do with the handling of time than with money per se. Samuelson (1947, 1983:117) and Grandmont (1983) showed that the analysis can be reproduced if money is entered in the utility functions. What remains is the issue of time. From a methodological point of view, Keynes’s theory is general in that it extends economic equilibrium with the notion that market non-clearing _disequilibrium _such as unemployment could be a state of expectational _equilibrium _too (a different concept of equilibrium). And money need not be the only cause, witness for example the difficulty of forecasting sales in order to set production. [10] [11] [12] Another example of the relevance of methodology appears to be Samuelson (1947). Samuelson emphasises his interest in a general theory (that word again) of economic theories, and clarifies that such a theory (i) should apply to various circumstances and (ii) be meaningful (as opposed to being a tautology). Samuelson clearly presents his argument as a methodological one. [13] Originally, the draft of this book started out with methodology, but this discussion now has been moved downwards, to a place where one will better appreciate its argument and the need for it. Book II Trias Politica and Economic Supreme Court 4. The Trias Politica Montesquieu published his _De l’Esprit des Lois_ in 1748. An English translation can be found on the internet, and a short biographical note, taken from there, has been included in an appendix. Though his book discusses many issues, it remained famous for the theory of the separation of powers, i.e. of the Legislative, Executive and Judicial branches of government. The American phrase is ‘checks and balances’. A key passage in Book XI shows that Montesquieu also refers to the existing case of England - so that his role is not one of originator but one of keen observer and developer of theory: “One nation there is also in the world that has for the direct end of its constitution political liberty. We shall presently examine the principles on which this liberty is founded; if they are sound, liberty will appear in its highest perfection. To discover political liberty in a constitution, no great labour is requisite. If we are capable of seeing it where it exists, it is soon found, and we need not go far in search of it.