Ex Ante

Ex Ante

Ex ante, a term first employed by Professor Gunnar Myrdal and now much used, especially in macro-economics, meaning literally 'from beforehand'. Hence 'ex ante definitions' of income or saving mean income or saving as they are expected to be in the future in the light of present plans. Ex post, or realized, income or saving may diverge from the expected in so far as they include unplanned or unexpected elements.

Ex post, actual or realized, usually in contrast to ex ante, meaning planned or intended. Some economists have pointed to differences between ex ante and ex post savings and ex ante and ex post investment as being important in determining changes in the level of national output.

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