“…This 'positive' approach considers the advantages of market proximity and is based on the assumption that, due to the high value of the land, farmers have to invest more and work harder to balance urban pressures, leading to increased revenues (Bryant and Johnston, 1992); hence, the notion of "agricultural adaptation to urbanization" (Heimlich and Barnard, 1997). Positive and innovative behaviour by farmers in response to urban competition has facilitated their transition from conventional farming to alternative practices; for example, organic farming (Beauchesne and Bryant, 1999), direct selling by farmers to consumers rather than through supermarkets, specific labelling identifying product origin, etc., that is, the development of multiple AFNs.…”