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Ex-ante

The term ex-ante (sometimes written ex ante or exante) is a phrase meaning "before the event".[1] Ex-ante is used most commonly in the commercial world, where results of a particular action, or series of actions, are forecast in advance (or intended). The opposite of ex-ante is ex-post (actual) (or ex post).

Examples:

The ex-ante (and ex-post) reasoning in economic topics was introduced mainly by Swedish economist Gunnar Myrdal in his 1927–39 work on monetary theory, who described it in this way:

Focusing attention on the relation between saving and investment, Myrdal argued that one may without any contradiction consider that, as they are made by separate agents, ex ante saving and investment decisions are not at parity in general while ex post saving and investment recorded in bookkeeping balance exactly:

This analysis has become a standard tool in macroeconomics.

Prices are quantities that directly refer to a point of time: they are determined at a point of time, after an ex ante adjustment process has taken place. As for the macroeconomic quantities, Myrdal proposed to refer to the point of time at which they are calculated.

Gunnar Myrdal further explained that ex ante disparity and ex post balance are made consistent through price changes, which result from the behavior of economic agents, which is based on ex ante anticipations:

In context of ex-ante, the Swedish economist Myrdal also dealt with the question of the unit of time, which he proposed to solve by reducing the actual time-dimension of macroeconomic variables such as income, saving and investment to a point of time:

Economist G. L. S. Shackle claimed the importance of Gunnar Myrdal´s analysis by which saving and investment are allowed to adjust ex ante to each other. However, the reference to ex ante and ex post analysis has become so usual in modern macroeconomics that the position of John Maynard Keynes to not include it in his work was currently considered as an oddity, if not a mistake. As Shackle put it:

See also

References

  1. ^ Dictionary.com. "ex ante". Dictionary.com. Retrieved September 18, 2007. 
  2. ^ Gunnar Myrdal, Monetary Equilibrium, London : W. Hodge 1939: 46–7)

External links

  • Analysis Irrelevant to Keynes's Theory of EmploymentEx Post and Ex AnteA Methodolocical Issue:
  • Rules from Myrdal’s Monetary Equilibrium Adrián de León-Arias
  • Monetary Equilibrium -Claes Henrik Siver Stockholm University
  • Myrdal's Analysis of Monetary Equilibrium G.L.S. Shackle
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