@inproceedings{inproceedings961aa964, title = {Contracting in weak institutional environment: genetic modified organisms}, author = {Zylbersztajn, Decio and Machado Filho, Cláudio Antonio Pinheiro and Spers, Eduardo Eugênio and Nogueira, Antonio Carlos Lima}, year = {2005}, publisher = {IAMA}, booktitle = {Annual World Food and Agribusiness Forum, Symposium and Case Conference} }