Daniel Danau LET, Université Lyon 2 and THEMA, Université de Cergy-Pontoise   19 rue Claude Bloch Caen, 14000 France   daniel.danau@gmail.com   https://sites.google.com/site/danieldanaupersonalwebpage/           JEL Areas: D8 : Information, Knowledge, and Uncertainty: General H8 : Public Economics: Miscellaneous Issues: General