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Abstract
After recalling the major lines of evolution in the food trade, the author analyses its effects on Wine markei. He examines the demand and its geographical distribution, focusing its analysis on the role of the decision centres : one of them, the « dealer » plays a great part. The supply analysis is deliberately limited to a description of two closely related phenomenons : horizontal and vertical integration. As this double phenomenon acts at every market stage, from production to retail marketing, the observed effects increase from the producer to the consumer. If the integration mouvement of demand increases, that of supply remains stationary; this leads to a disruption of the marketing structures. Supply is more and more dominated by demand. In conclusion, the author outlines a few sketch-plans of the future evolution.