"Professor Sims doesn’t want to be pigeonholed. “I’m not ‘non-Keynesian,’ ” he said, adding that he has been an active “promoter of new Keynesian macroeconomic models,” because they “are the place in our profession where theory and data and policy decision-making are coming together.”
“It doesn’t really make much sense to stand on the sidelines and take potshots at them,” he said. “If you don’t like the way they’re working, you should try to do better.”
He and Professor Sargent have been “trying to do empirical macroeconomics using formal tools of statistics,” he said. “Those tools aren’t in themselves ideological.”
Professor Sims spoke favorably of the Obama administration’s fiscal stimulus programs, which are Keynesian in their countercyclical spending. “An expansionary fiscal policy is probably what we need right now,” he said.
También se puede consultar este otro post que publicó Matias Vernengo titulado "Sims no es Sargent" donde nos comparte un texto clásico de Sims que data de 1980 titulado "Macroeconomía y Realidad": Sims is not Sargent
Igual podemos ver en el blog del Instituto Levy del Colegio Bard: More on the nobel prize and its imposible meanings y este otro del mismo instituto This morning announcemment and our institute