Valuation (9) spectacle (6) modèle (6) expérience scientifique (6) Value (6) Political science (6) Example (6) Valuation (6) projet (5) papier (5) contrat (5) Values (5) Paper (5) Design (5) Willingness to pay (5) Design (5) Government (5) temps (durée) (4) enquête (4) recherche (4) information (4) chasse (4) conservation (4) Conservation (4) Water (4) Time (4) Research (4) Hunting (4) Research (4) Hunting (4)