TY - JOUR A1 - Beckmann, Volker A1 - Soregaroli, Claudio A1 - Wesseler, Justus TI - Ex-Ante Regulation and Ex-Post Liability under Uncertainty and Irreversibility: Governing the Coexistence of GM Crops PY - 2009/12/04 JA - Economics: The Open-Access, Open Assessment E-Journal VL - 3 IS - 2009-53 UR - http://www.economics-ejournal.org/economics/discussionpapers/2009-53 ER -