These developments have enabled the industry to respond well to a wide range of changing consumer preferences, while maintaining relatively low prices. But there are also concerns about their growing market power, about price transmission, transparency and what is a “fair” distribution of profits across the food chain. Both public food safety standards and private quality standards have been raised in response to consumer demands, but these imply higher compliance costs and some farmers, particularly in developing countries, may have difficulty in meeting the more stringent standards. In some cases there remains considerable scope for improving productivity through more widespread adoption of available technologies. Progress can also be made to make better use of what is produced - as much as one-third of food “disappearance” has been estimated as “waste”.