ABSTRACT
Explaining macroeconomic phenomena, and the resulting macro performance of various economies, is a valuable objective for macroeconomic theory. Indeed, a very large part of macroeconomics has no other purpose. The intention of this contribution is not to downgrade in any way the explanatory objective which in all sciences naturally comes prior to concern about applications. But, in order to pay tribute to Jean-Paul Fitoussi, this book rightly stresses economic policy, which was and remains the dominant driving force in his life.
