Trois essais sur les anticipations d'inflation - Three essays on inflation expectation

This working paper gathers three projects of articles which have as a same subject inflation expectations and their use within the framework of monetary policy. It appeared convenient to synthesize them in the form of three parts of only one document, thus making it possible to the reader to have a vision as complete as possible on this question. The first part is of a theoretical nature and presents the literature. The second points out this literature, specifies the characteristics of a monetary policy founded on a direct target of inflation, and proposes an econometric analyse in the French case. The third extends this methodology to the case of the euro zone and shows the difficulties of it.