Recently, the number of farmers' markets has increased. A problem of farmers' markets, however, is the daily mismatch of supply and demand. In this paper, we analyzed time series variation factors regarding quantity demanded in the farmers' market using a case study of POS data. The technical analysis showed, first, that sellouts of several items don't influence the sales on the day in the farmers' market. Second, holiday's sales are three or four times as much as weekday's sales. Third, quantity of demand was influenced by daily weather, meaning that the quantity of daily demand changed greatly and irregularly. Therefore, a combination of two or more markets is necessary. Moreover, the quantity of demand was strongly influenced by gasoline prices as well as by the price index and economic trends. On the other hand, it is suggested that seasonal variation of demanded quantity tends to increase in the public favorable season for one day leisure and popular items. Furthermore, seasonal merchandise items are influenced strongly in opening term, after which influence gradually weakens. Therefore, promotion of popular items becomes takes on great importance in the farmers' market.
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