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...Provisional draft final version published in brancaccio e saraceno f evolutions and contradictions mainstream macroeconomics the case of olivier blanchard review political economy doi emiliano brancaccioa francesco saracenoa a b universita del sannio benevento italy ofce science po paris france luiss sep roma abstract this article traces complex intellectual path personification controversial evolution macroeconomic research over last three decades after having contributed to consolidating core recently suggested rethinking some its key aspects try take stock from lessons great recession which he witnessed his position as imf head economist most welcome discussion that according should open heterodox thinking has so far produced synthesis is certainly interesting but theoretically contradictory consequences terms policy are limited paradigmatic aspect represented by abandonment aggregate supply demand teaching favour revival old lm model complemented phillips curve while change perspec...