They often possess considerable monopsony or monopoly power in particular sectors, even if there is formally no restriction on new entrants. The use of industry associations such as VFA to implement policy needs to be fully reviewed, as there is a strong possibility for vested interests to limit competition. Efforts to open up various components of the food chain, including importing and exporting, to private firms are unlikely to be successful if the incumbent SOEs have sufficient market power to deter entry. This may delay adjustments to market signals, including those calling for higher-added value products to be supplied to domestic and international consumers.