What lies behind crop decisions?Coming to terms with revealing farmers’ preferences

Carlos Gomez, University of Alcalá, Economics, Madrid, Spain, Carlos Gutierrez, University of Cordoba, Cordoba, Spain, Manuel Pulido-Velazquez, Polytechnic University of Valencia, Research Institute of Water Engineering and Environment (IIAMA), Valencia, Spain and Antonio López Nicolás, Polytechnic University of Valencia, Valencia, Spain