What are the conditions under which private, voluntary certification programs like the Rainforest Alliance or Fairtrade can successfully promote environmental and social standards? We propose that the efficacy of a certification program depends on three variables: its sustainability standards,...

What are the conditions under which private, voluntary certification programs like the Rainforest Alliance or Fairtrade can successfully promote environmental and social standards? We propose that the efficacy of a certification program depends on three variables: its sustainability standards,...