价格管制、放松管制与我国成品油市场均衡

Price Regulation,Unfasten Regulation and the Market Equilibrium of Refined Oil

我国成品油市场是一个寡头垄断市场。本文研究结论表明:在我国原油和成品油价格与国际市场价格滞期接轨的情况下,对于三地定价管制,政府可以通过数量税的恰当调整实现成品油市场的古诺均衡;对于原油加成价格管制,合适的价格加成率可以实现成品油市场古诺均衡,但会降低炼油企业效率;要实现市场效率意义上的成品油市场均衡并同时兼顾我国的能源利益,我国成品油价格改革要在管制原油进口的基础上,放开成品油进口和生产的市场准入,并赋予各成品油生产企业以平等的购买原油资格。

The refined oil market is an oligopoly market in our country. Our conclusion say： Given the condition that our oil price and refined oil price is linked with international oil and refined oil market price of last month, our government can adjust the quantity tax to make our refined oil market a equilibrium of Cournot in the setting of our refined oil price regulated by the average refined oil price of three places. In the setting of our refined oil price regulated by oil price plus rate, proper rate can make our refined oil market Cournot equilibrium, but this pricing system may damage the efficiency of the refinery. If we want to implement the efficient equilibrium in our refined oil market, we should permit other refinery to enter the refined oil market. We should give every refinery the equal status to get the oil source. Meanwhile we should regulate the importation of the oil for the benefit of our country, otherwise the oil price maybe disturbed by the refinery＇s out-of-order importation behavior.