Cooperative traders and exporters can only sell produce on Fairtrade terms if they meet the set of standards set by Fairtrade International that demand minimum requirements to criteria such as pricing and terms of trade. Farmers pay FLOCERT a certification and inspection fee. Other administration costs and production costs are incurred to meet these standards. Commodity prices can drop when the world market is oversupplied. A minimum price, which is paid to producers, acts as a safety net for farmers at times when world markets fall below a sustainable level. An additional sum of money, called the Fairtrade Premium, is paid to farmers for products sold on Fairtrade terms. Some cooperatives can sell only a third of their output as Fairtrade, because of lack of market demand, and sell the rest at world prices. As the additional costs are incurred on all production, not just that sold as Fairtrade, cooperatives sometimes lose money on their Fairtrade membership. After the certification fees have been subtracted from the overall income earned on Fairtrade terms, the rest goes into a communal fund for workers and farmers to use as decided democratically within the farmers' organisation, or by a workers' committee on a plantation. The additional sum (Fairtrade Premium) is invested in ‘social projects’ such as clinics, women’s groups and baseball pitches.