spectacle (3) pollution (3) modèle (3) marché (3) Pollution (3) Finance (3) Example (3) Finance (3) élasticité (2) coût (2) public (2) Equilibrium (2) Elasticity (2) Cost (2) Agent (Philosophy) (2) Elastic properties (2) taxation (1) papier (1) affectation (1) externalité économique (1) Taxation (1) Case (1) Control (1) Membership (1) Will (1) Taxation (1) Paper (1) Modeling (1) Markets (1) Identity (Philosophical concept) (1)