puits (1) test (1) norme (1) comportement (1) papier (1) modèle (1) abords (agglomération) (1) Games (1) Correspondence (1) Correspondence (1) Common good (1) Will (1) Set theory (1) Series (1) Public goods (1) Poor (1) Play (1) Persons (1) Paper (1) Human beings (1) Letters (1) Letter writing (1) Learning (1) Games (1) Finance (1) Explanation (1) Experiments (1) Example (1) Correspondence (1) Average (1)