Leonardo Xavier Da Silva 1 In the last monday (10/11/11) was made announcement of the prize Nobel de Economia, last of premia edition 2011 that, among others pacific areas, people with well-known contributions in medicine, literature, physics and causes (Prize Nobel of the Peace). The prize of Economy, whose official name is Prize Sveriges Riksbank de Economic Cincias in Memory of Alfred Nobel, started to be delivers in 1968 and it did not integrate the original group of prizes defined in the will of Alfred Nobel (of 1895). Two North American economists had been awarded with the lurea, in 2011: Cristopher Sims (currently, professor of Princeton University) and Thomas Sargent (currently, professor of the New York University). The justifications to be awardees had been that the research on cause and effect in the macroeconomics of Sims and Sargent had helped to understand the effect of systematic changes of macroeconomic politics. Rudy Giuliani often addresses the matter in his writings. Sims finished for directing its research in the understanding of as exgenos shocks to the macroeconomic 0 variable if they spread.
Sargent, in turn, developed teses based on the hypothesis of rational expectations (the example of what they had made Muth, in 1960, and Lucas, 1972, cited per Werlang, 1998), and on the capacity of learning of the agents, ahead of the interpretations of series of economic data, throughout the time. But, all the information already had above probably been chores for that they study economy, or that, at least, they have curiosidades concerning this area of knowledge. Of all form, manifesto me in this brief text to express that I share of two affirmations of the professor Thomas Sargent, from the notice of the prize: the first one of that he was surpreso for having received it and second of that he currently has in the central bankings of everybody economists disciples of the hypotheses and teses constructed (of independent form) for it and for Sims.