As agricultural product supply has exceeded its demand frequently in recent years while direct governmental policies for stabilization are confined in the WTO regime, the social interest is increasing in the agricultural outlook service in Korea. With the interest increased, questions are raised concerning the value of the agricultural outlook information and the financial effectiveness of the outlook service system itself. This study aims to investigate economic effects of the agricultural outlook service in Korea. Special emphases are put on stabilization effect, welfare effect, and learning effect of the agricultural outlook.