Amigues, Jean-Pierre; Grimaud, André; Moreaux, Michel - In: Revue d'économie politique 114 (2004) 3, pp. 393-416
We show how the exhaustion constraint of non renewable resources, against which maintaining a minimum level of consumption may collapse in the long run, could be relaxed by an appropriate effort in R?D. However along any optimal trajectory of the economy, this effort has to be made if and only...