木薯(cassava)被認為是泰國重要的經濟作物，然而由於政府為了穩定市場價格對其進行干預，使得該產品出口到國外不平衡，因為這樣的影響會導致價格傳遞上的不平衡。THH Capital公司是家出口加工木薯產品的公司，例如 木薯顆粒(cassava pellets)、木薯片(cassava chips)和木薯粉(cassava starch)，本研究的目的是透過THH Capital公司的個案研究，調查泰國木薯市場的出口價格與批發價格間，以及批發價格與農場交貨價格間的價格不平衡關係。

本研究採用木薯的價值鏈和五力分析模型，對西元2002至2013年的木薯園資料進行分析，研究發現因為政府過度干預木薯的出口產品和木薯產業，使得木薯價格不穩定；另外，由於政府政策，讓外商在泰國開設木薯公司不受保護。因此，政府應該要有控制政策，並對木薯產業和木薯農民提供更多好處。

Cassava is considered an important economic crop in Thailand, but the export of products to foreign countries is imbalanced, which is caused by the government intervention in order to stabilise market prices. This is because this influence can create an imbalance in the price transmission.

The purpose of this study was to investigate the relationship of the price imbalance between the export price and the wholesale price and between the wholesale price and the farm gate price in the cassava market of Thailand by a case study of the THH Capital company, which is a company that exports processed cassava products, such as the cassava pellets, cassava chips and cassava starch. This case study uses the information in the data from 2002 – 2013. In this study, the cassava value chain and the Five Forces model were used in the analysis of cassava plantations. From this study, it was found that in the export of products and the cassava industry, the government has excessively intervened in the system, which causes the price of cassava to be unstable. Moreover, with regard to the government's policy, the opening of cassava companies in Thailand by foreign companies is not covered.
As a result, the government should have a government-controlled policy and provide more benefits to the cassava industry and the cassava farmers.

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