The media coverage of the Boston attack made me miss several important news stories, including the renewed debate on conclusions stemming from an article condemned since its publication in 2010 by European and U.S. supporters of austerity, including former vice-presidential candidate Paul Ryan, R-Wis.
Titled "Growth in a Time of Debt," signed by two renowned Harvard economists, Carmen Reinhart and Kenneth Rogoff, and based on information collected between 1946 and 2009, the article showed that growth appeared to be considerably lower in countries where the public debt exceeds 90 percent of the GDP.
And yet, three economists from the University of Massachusetts Amherst revealed serious errors in the Harvard pair's calculations — errors that, in their opinion, overturn [the Harvard economists'] conclusions. According to their research, published on April 15, the 90 percent threshold had no particular significance, and the link between GDP growth and debt was very weak.
Here is the million-dollar question: Do the austerity politics of Europe and the U.S. rest on false conclusions?
The Harvard study debate continues today in the Opinion pages of The New York Times. In his column, economist Paul Krugman expressed his hope that a re-examination of Reinhart and Rogoff's conclusions would force supporters of austerity to reassess their policies. He does not really buy into them.
At the same time, the two Harvard academics defend their study, notably minimizing the relative importance of their miscalculations as compared to "a century of data."
Comedian Stephen Colbert is obviously not an economist, but he could not resist the urge to poke fun at the Reinhart-Rogoff duo, as you can see in the video at the end of this post.*
* Editor’s Note: Readers can access this video by clicking on the original article.
La couverture de l’attentat de Boston m’a fait rater plusieurs nouvelles importantes, dont la remise en question des conclusions d’un article brandi depuis sa parution en 2010 par les partisans de l’austérité en Europe et aux États-Unis, dont l’ancien candidat à la vice-présidence Paul Ryan.
Intitulé «Croissance en période de dette» et signé par deux économistes réputés de Harvard, Carmen Reinhart et Kenneth Rogoff, l’article démontrait, en s’appuyant sur des données collectées entre 1946 et 2009, que la croissance s’est avérée sensiblement inférieure dans les pays dont la dette publique dépassait 90% du PIB.
Or, trois économiques de l’Université du Massachusetts à Amherst ont relevé de «graves erreurs» dans les calculs du duo de Harvard, erreurs qui dégomment à leur avis leurs conclusions. Selon leurs travaux publiés le 15 avril, le seuil de 90% n’a aucune signification particulière et lien entre croissance du PIB et endettement n’est que très faible.
D’où la question qui tue : les politiques d’austérité en Europe et aux États-Unis reposeraient-elles sur de fausses conclusions?
Le débat sur l’étude des économistes de Havard se poursuit aujourd’hui dans les pages d’opinions du New York Times. Dans unechronique, l’économiste Paul Krugman exprime le souhait que la remise en question des conclusions de Reinhart et Rogoff forcera les partisans de l’austérité à remettre en question leurs politiques. Il n’y croit pas trop.
Dans la même page, les deux universitaires de Harvard défendent leur étude, minimisant notamment l’importance relative de leurs erreurs de calcul par rapport à des «siècles de données».
L’humoriste Stephen Colbert n’est évidemment pas un économiste. Mais il n’a pu résister à l’envie de se payer la tête du duo Reinhart-Rogoff, comme on peut le constater dans la vidéo qui coiffe ce billet
This post appeared on the front page as a direct link to the original article with the above link
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