For example, Wiggins and Keats (2013) summarise three dimensions to policies that might address this challenge (Figure 4). One dimension is simply to build the case for government involvement based on public-good arguments, where the driver for building successful links between small farmers and markets would be found in private enterprise. A second dimension is to identify the participants: fanners and farm group who can transition to commercial operations, and sponsors or champions who can maintain the linkages with smallholders.