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The objective of this study is to investigates causality relationship of wholesale market price among selling bodies in Garak󰠏dong terminal market. The selling bodies are classified into three types, namely individual sellers, joint selling bodies, and agricultural cooperatives. To identify the causality relationship among major selling bodies, the study utilizes such econometrics methods as Granger causality test, vector autoregressive regression(VAR) model, forecast error variance decomposition analysis, and impulse response analysis. Estimation results indicate that wholesale price of agricultural cooperatives have much influenced on the selling prices of individual sellers and joint selling bodies. Therefore, it means that the wholesale price of agricultural cooperatives leads to the prices of agricultural wholesale market.