Christopher a. Sims Christopher A. Sims is the John J. F. Sherrerd ’52 University Professor of Economics at Princeton University since 1999. Previously he has also worked at the University of Minneso- ta and Yale University. Christopher A. Sims holds a PhD from Harvard University. He was awarded the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel together with Tom Sargent in 2011 for “for their empirical research on cause and effect in the macroeconomy”. He has published in Econometrica, Journal of Political Economy, American Economic Review, Journal of Econometrics, Journal of Econometric Theory, Journal of Money, Credit, and Banking, Journal of Economic Dy- namics and Control, European Economic Review.