Based on the data of petrochemical and refining industries in 2004 and 2005, an econometrics model is set up to work out the price level by which the synthetic materials industry could reach the maximum of profit's increment, and the price by which the re
Based on the data of petrochemical and refining industries in 2004 and 2005, an econometrics model is set up to work out the price level by which the synthetic materials industry could reach the maximum of profit's increment, and the price by which the re
本文以2004年和2005年石油化工和石油精炼行业的利润和国际油价数据为基础，建立计量经济模型，测算出与合成材料产业利润增量最大化相对应的油价水平以及与石油精炼产业盈亏平衡点相对应的油价水平。