基于ARCH类模型的国际粮价波动规律研究

被引:9
作者
公茂刚
王学真
高峰
机构
[1] 山东理工大学商学院
关键词
国际粮价; 波动规律; ARCH模型;
D O I
暂无
中图分类号
F313.7 []; F224 [经济数学方法];
学科分类号
0701 ; 070104 ;
摘要
粮价的波动最终会给一国的粮食安全带来巨大风险。了解国际粮价的波动特征有助于采取相应的措施稳定粮价,避免粮价波动的国际传导对国内粮食市场进而对粮食安全产生不利影响。通过建立ARCH类模型,分析各类粮食国际价格的波动规律。得出的主要结论有:国际粮价波动存在明显的集族性;外部冲击对国际粮价波动具有持久性影响;国际粮食市场不存在高风险高粮价的特征;国际粮价波动具有显著的非对称性,而且粮价上涨的信息引发的粮价波动要大于粮价下降的信息引发的波动。
引用
收藏
页码:11 / 17
页数:7
相关论文
共 12 条
  • [1] Recent Food Prices Movements:A Time Series Analysis. Cooke,B,Robles,M. IFPRI Discussion Paper,No.00942 . 2009
  • [2] Generalized autoregressive conditional heteroscedasticity. Bollerslev Tim. Journal of Econometrics . 1986
  • [3] Autoregressive conditional heteroscedasticity with estimates of the variance of UK inflation. Engle R F. Econometrica . 1982
  • [4] Estimating time varying risk premia in the term structure:the ARCH-M model. Engle R F,Lilien D M,Robins R P. Econometrica . 1987
  • [5] On the relation between the Expected Value and the Volatility of the Nominal Excess Return on Stocks. Glosten L R,jagannathan R,Runkle D E. Journal of Finance, The . 1993
  • [6] Conditional heteroskedasticity in asset returns. Nelson D B. Econometrica . 1991
  • [7] Expected stock returns and volatility. French KR,Schwert GW,Stambaugh RF. The Journal of Finance . 1987
  • [8] No news is good news: an asymmetric model of changing volatility in stock returns. Campbell JY,Hentschel L. The Journal of Finance . 1992
  • [9] Threshold heteroskedastic model. Zakoian Jean-Michel. Journal of Econometrics . 1994
  • [10] "Has food price volatility risen?". Gilbert,C.L,Morgan,C.W. . 2010