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Résumé

How broad should the objectives assigned to economics be ? Considering the difficulties of explaining the main economic phenomena, economists ought to avoid the temptation of broadening their subject and of aiming at understanding the whole socio-economic evolution. A rather narrow definition of the field is the price to pay for making assessments more scientific, a requirement accepted since a number of decades. This is why economics has become more quantitative and mathematical, a trend which one cannot regret even if the relevance of some theoretical investigations ought at times to be questioned.