@inproceedings{barraque:hal-00777590, TITLE = {{The 2020 European Agriculture : long term challenges, new public and private policies}}, AUTHOR = {Barraqu{\'e}, Bernard}, URL = {https://enpc.hal.science/hal-00777590}, BOOKTITLE = {{Sciences Po et Groupe d'Economie Mondiale}}, ADDRESS = {Paris, France}, PAGES = {nc}, YEAR = {2009}, MONTH = Jan, HAL_ID = {hal-00777590}, HAL_VERSION = {v1}, }