In this paper, the relation between aggregated daily market information and official semi-monthly (ten days) market statistics is estimated with data of the Ohta whole sale market from 1986 to 1990 for 10 commodities of vegetables and 10 commodities of fruits. The results indicate that quantity of market information of each commodity is lower than quantity of official statistics by 3% to 19%, and "average price" of market information is higher than price of official statistics by 5% to 85%. On the other hand, "lower price" of market information is similar to price of official statistics and ratio of "lower price" to price of official statistics is between 65% and 119%. On the variations pattern, more than 90% of variation of quantity of official statistics in 14 commodities out of 20 commodities is explained by regression equation whose explanatory variable is quantity of market information. More than 80% of variation of price of official statistics in 14 commodities out of 20 commodities is explained by regression equation whose explanatory variable is "average price" of market information. Hit ratio of official quantity estimated in 1991 using the regression equation is more than 0.8 under the estimation errors of 10% in 9 commodities out of 20 commodities. Hit ratio of estimated official price is more than 0.8 under the estimation errors of 10% in 7 commodities out of 20 commodities.

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