江西财经大学学报 ›› 2018, Vol. 0 ›› Issue (01): 247-.

• • 上一篇    

中国铁矿石期货市场价格的发现效率及其动态变化

徐长生,饶珊珊   

  1. (华中科技大学 经济学院,湖北 武汉 430074)
  • 发布日期:2021-01-21
  • 作者简介:徐长生,华中科技大学教授,主要从事发展经济学和宏观经济学研究;饶珊珊,华中科技大学博士研究生,主要从事宏观经济学研究,通讯作者联系方式970809571@qq.com。

Discovery Efficiency and Dynamic Changes of Prices in China’s Iron Ore Futures Market

XU Chang-sheng, RAO Shan-shan   

  1. (Huazhong University of Science and Technology, Wuhan 430074, China)
  • Published:2021-01-21

摘要: 基于向量误差校正模型和状态空间模型,利用中国铁矿石期货自2013年10月18日上市以来至2016年12月23日的数据,研究了我国铁矿石期、现货价格之间的相互影响关系以及铁矿石期货市场价格发现效率的动态变化过程。理论分析表明,铁矿石期、现货价格之间存在长期协整关系,可建立误差校正形式的状态空间模型。实证结果显示,相比现货市场,铁矿石期货市场对新信息的反应更为敏捷,在价格发现功能方面占据主导地位。且从长期来看,铁矿石价格调整机制表现为现货价格向期货价格方向调整,铁矿石期货市场在价格发现的过程中发挥着越来越重要的作用,这就要求进一步发展完善我国铁矿石期货市场,以提高其定价效率。

关键词: 铁矿石期货市场,价格发现,定价效率

Abstract: By making use of the data from October 18, 2013, when China’s iron ore futures were listed, to December 23, 2016, this article studies the relationship between the futures prices and the spot prices in China’s iron ore markets and the dynamic changes of the price discovery efficiency in the iron ore futures market by employing the vector error correction model and the state-space model. The theoretical analysis shows that there is a long-term co-integration relationship between the future prices and spot prices in the iron ore markets, on which a state-space model in the form of error correction can be established. The empirical results show that, compared with the spot market, the futures market of iron ore reacts more promptly to new information, which holds a leading position in the price discovery function. Moreover, in the long term, the iron ore price adjustment mechanism mainly displays a tendency of adjustment from the spot price into futures price, and the iron ore futures market is playing a more and more important role in the process of price discovery. For these reasons, it is required to further develop and improve China’s iron ore futures market, so as to enhance its pricing efficiency.

Key words: iron ore futures market; price discovery; pricing efficiency