Jean-Pierre PONSSARD Home › People › Profile Jean-Pierre PONSSARD CREST Emeritus Emeritus Economics Personal Website This user account status is Approved ContactE-mail Address : See the e-mailjean-pierre.ponsard@ensae.frPhone : +33 (0)1 70 26 69 25Office : 4093Edit Profile Bio Publications Media Optimal policy and network effects for the deployment of zero emission vehicles ... Meunier G,Ponssard JP European Economic Review, 2020