Decent wage or fair price? Fair trade or SA 8000? These fundamental questions pinpoint the impact of purchasing practices and the different business models meant to protect small producers in the South. A pilot project of CAP, conducted with Colruyt and Vredeseilanden, helped to investigate the case of asparagus producers in Peru, and lead to very concrete ideas to structure supply chains. This comparative approach furthers the logic of standards and unveils their convergence… and inconsistencies.