本文採用投入產出模型之產業關聯分析法，模擬取消農業部門關稅障 礙，以及撤除稻米部門非關稅障礙兩種進口自由化方式，對於農業部門、農業相 關部門、其他非農業部門、以及整體經濟，在產出、所得、及就業水準上之影響。 在模擬設定上，除了考慮關稅化原則外，亦將進口替代納入考量。研究結果發現:(1) 廣義農業部門取消所有進口關稅之產出、所得及就業效果顯示，無論是考慮或未 考慮進口替代的情況，對於整個基本農業部門均為負面影響，唯其細部門間存在 明顯的正負影響差異。相對地，工業及服務業部門的正面效果遠超過基本農業的 負面效果，因此，全體產業的總影響為正面效果。(2)撤除稻米部門非關稅障礙之 產出、所得及就業效果顯示，在未考慮進口替代的情況，稻米自由化的結果固然 對其本身部門有不利影響，但對整個基本農業、工業、服務業而言，均為正面影 響;若外生地設定稻米部門之國內消費量將有3因稻米開放進口而被取代，則模擬 結果發現，稻米部門本身的負面影響顯著地增強，使得整個基本農業部門亦呈現 負面影響，然而，全體產業之總影響仍為正面效果。

　　　　　This paper simulates the economic impacts of import liberalization on agricultural and nonagricultural sectors usiug input-outputanalysis. Two simulations were carried: tariff liberalization for allagricultural sectors and nontariff liberalization for the paddy ricesector. While import substitutions were allowed for both simulations, the tariffication principle was adopted for the latter one.Two important empirical findings are found: (1) results from thefirst simulation show that liberalization will cause negative impactson output, income and employment to the basic agricultural sector,whereas positive or negative impacts are found for those sub-sectorsof the basic agricultural sector. Also, since positive effects on thoseindustrial and service sectors outweigh negative effects on the basicagricultural sector, the total effects to the whole economy are positive; (2) results from the second simulation indicate that under noimport substitution scenario, the impacts of liberalization of riceimportation will cause negative effects on the paddy rice sector,but yield positive contributions to other sectors of the economy.However, under a scenario where 3 of domestic rice consumptionsubstituted by imported rice, the proceeding negative effects on thepaddy rice sector will increase significantly such that the impact onthe basic agricultural sector become negative. Nevertheless, thetotal effects to the whole economy are still positive.