Decentralized processes for public and private goods -- Environment, public goods, and externalities -- Efficiency analysis.-Fiscal competition and optimality.

The twenty-two papers collected in this volume illustrate the itinerary of Henry Tulkens, an applied theorist, on the occasion of his retirement from teaching. The collection is structured in four parts: I. Decentralized resource allocation processes for public and private goods II. Environment, public goods and externalities III. Efficiency analysis IV. Fiscal competition and optimality The four pictures above evoke a key concept, method or model used in each of these four parts: > MDP-type processes to determine feasible paths to efficiency and coalitional stability. > CLIMNEG World Simulation model to explore alternative environmental scenarios for the planet. > Free Disposal Hull efficiency analysis to drop convexity and help deal with outliers. > Non Cooperative Fiscal Equilbria to characterize the outcomes of fiscal competition