Nominal rigidities: microeconometric analysis of prices and wages.

Summary This thesis proposes new results on nominal rigidities in France. Chapter 1 provides a synthesis of the work comparing microeconomic models of price rigidity with microeconomic results. Chapter 2 characterizes, with the help of simple statistics, the rigidity of producer prices in France using the individual price surveys used to construct the producer price index. Chapter 3 examines the impact of the minimum wage on restaurant prices by estimating a tobit model on individual consumer price data. The minimum wage has a positive and significant impact on both the decision and magnitude of price changes. Nominal rigidities explain the slow adjustment of prices. Chapter 4 shows the crucial role of bargaining on price rigidity. Ial of bargaining on wage rigidity using an endogenous regimes model estimated on individual wage bargaining data in France.