Martin, Elsa; Stahn, Hubert - In: Revue d'économie régionale et urbaine 2009 (2012) 03, pp. 517-548
<italic>Many aquifers, such as the Crau one, located in South-East of France, are not only exploited in order to satisfy human needs but are also replenished thanks to some farmers who are irrigating their crops according to old practices. Because of the positive externality hence induced, groundwater...</italic>