There has been a change in the structure of food markets in developing countries. Food supply chains have shifted from local and fragmented chains to geographically much longer ones. Some segments have declined, with a reduction of the importance of traditional village traders and an increased importance of others, like urban wholesale markets and specialized modern wholesale and logistics. In the general context of overall market expansion, there has been at first a proliferation of small and medium firms and then, eventually, concentration in the segments (with a rise in scale of farms). This has often involved multinationalization. The leading players in the downstream changes tend to be a small number of large corporations, while the revolution in the midstream parts is, in large part, a silent one, with some large firms, but mainly with hundreds and thousands of small and medium-sized firms transforming the ways in which food production is supported and food products are processed, wholesaled and transported.