The quest for efficiency, an approach to increase the contribution of livestock farming to the sustainable development of territories. Vayssières Jonathan, Stark Fabien Shandor, Blanfort Vincent, Poccard-Chapuis René, Vigne Mathieu. 2023. In : Livestock grazing systems and sustainable development in the Mediterranean and tropical areas. Recent knowledge on their strenghts and weaknesses. Ickowicz Alexandre (ed.), Moulin Charles-Henri (ed.). Versailles : Ed. Quae, 78-134. (Matière à débattre et décider) ISBN 978-2-7592-3710-4