上海金融学院学报
上海金融學院學報
상해금융학원학보
JOURNAL OF SHANGHAI FINANCE COLLEGE
2015年
4期
15-23
,共9页
黄金价格%ARMA模型%TGARCH模型%正向冲击
黃金價格%ARMA模型%TGARCH模型%正嚮遲擊
황금개격%ARMA모형%TGARCH모형%정향충격
gold price%ARMA model%TGARCH model%positive impact javascript
2013年4月,国际金价暴跌,大宗商品价格面临新一轮调整,伦敦金定盘价问题备受关注。选择伦敦黄金年度数据进行ARMA模型检验,发现年度金价为AR(2)过程。选择伦敦黄金月度数据建立TGARCH(1,1)模型,发现存在杠杆效应,正向冲击对金价波动的影响较大。基于世界经济形势,指出在后危机时代,国际黄金价格仍将剧烈波动。
2013年4月,國際金價暴跌,大宗商品價格麵臨新一輪調整,倫敦金定盤價問題備受關註。選擇倫敦黃金年度數據進行ARMA模型檢驗,髮現年度金價為AR(2)過程。選擇倫敦黃金月度數據建立TGARCH(1,1)模型,髮現存在槓桿效應,正嚮遲擊對金價波動的影響較大。基于世界經濟形勢,指齣在後危機時代,國際黃金價格仍將劇烈波動。
2013년4월,국제금개폭질,대종상품개격면림신일륜조정,륜돈금정반개문제비수관주。선택륜돈황금년도수거진행ARMA모형검험,발현년도금개위AR(2)과정。선택륜돈황금월도수거건립TGARCH(1,1)모형,발현존재강간효응,정향충격대금개파동적영향교대。기우세계경제형세,지출재후위궤시대,국제황금개격잉장극렬파동。
In April 2013,the international gold price slumped,and commodity prices faced a new round of adjustment. London gold fixing price has attracted great public attention. Through ARMA model,the author found that the annual data of London gold price is an AR (2)process. Through TGARCH (1,1)model, the existence of leverage effect of the monthly data of London gold price is found ,and the effect of positive impact on price fluctuations is larger. Based on the analysis of world economic situation , the conclusion that the gold Prices will still fluctuate violently in the post crisis era is drawn.