The population of the Metropolitan area (Tokyo, Kanagawa, Saitama, and Chiba Prefecture) is over 32 million and 400 thousands. The urban area extends through a line of roads and railways radiating in all directions from the central part of Tokyo. The numbers of vegetable and fruit central wholesale markets are 9 in Tokyo, 5 in Kanagawa, 2 in Chiba. In Saitama, there is no vegetable and fruit central wholesale markets, but there are local ones. The majority of those markets are distributed within a 40km radius from the center of Tokyo. The number of personal-operated retailers is more in Tokyo than in the other prefectures. On the other hand, the numbers of bigger supermarkets are located suburban areas. Today, a main methods of trading at wholesale markets is a pre-engagement ordering system. The former auction system has become miner for buying local products. There are several reasons to be considered for this movement: (1) taking in advancing practices at a very high rate, (2) big producer managing organizations demanding pre-set desired prices, (3) big retail stores' demands for lower price, (4) small to medium sized wholesale markets being forced to buy unavoidably, the products with the price set by the big wholesale market. At a pre-engagement ordering system, some big wholesale markets (especially Ohta Central Wholesale Market) stand at an advantage. Presently, the price of the products from some big producers managing organizations are decided at the big wholesale market. Therefore, the other wholesale markets cannot decide the price on an independent stand, then the prices becomes the same as the big whole market. 25% of the handling volumes of the Tokyo central wholesale market are transported to 3 prefectures in the Metropolitan area. Many goods are distributed from the central wholesale market of Tokyo to the other areas such as Hokkaido, Tohoku and Chubu districts. 10 to 20% of the handled goods are distributed directly from producers' organizations to retailer shops at least including the wholesale amount of one carrying vehicle. The change of trading is caused by the extension of difference between big sized markets and small to medium ones. Therefore, the small to medium sized wholesale markets are very difficult to adjust to the rapid changes. The systematization of enterprises by big markets is now stagnating, because it is not able to creats a profit. The amalgamation of other area's market enterprises has found a new type of systematization. This movement is expecting to speed controled market area widely by same enterprise. As a conclusion, in the Metropolitan Area, the handling volume is unevenly distributed to the Tokyo wholesale market, especially the Ohta Central Market, under the advance of big super markets and the appearance of powerful producing organizations. The weakning or reorganizations of small to medium sized market enterprises is now inevitable under the coming pre-engagement ordering system in all wholesale markets.
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