工业技术经济
工業技術經濟
공업기술경제
Industrial Technology & Economy
2013年
9期
115~124
,共null页
欧盟碳排放交易机制 欧盟配额 动态套期保值 跳跃GARCH模型
歐盟碳排放交易機製 歐盟配額 動態套期保值 跳躍GARCH模型
구맹탄배방교역궤제 구맹배액 동태투기보치 도약GARCH모형
European union emission trading scheme; European union allowance; dynamic hedging; GARCH- Jump model
本文采用一个二元跳跃广义条件异方差模型(ARMA - GARCH - Jump,以下简称GARCH—Jump)研究欧盟碳排放配额(EUA)期货的套期保值作用。研究表明,EUA价格出现跳跃的强度、幅度是时变的,且EUA现货价格波动对基差的影响是非对称的,GARCH—Jump模型能有效刻画EUA价格的波动聚类和尖峰特征,能更准确分析EUA现货价格与基差的联合动态特征。套期保值分析表明,通过GARCH-Jump模型得到的最优套期比率是时变的,GARCH—Jump套期比率能有效地降低投资组合收益的方差。
本文採用一箇二元跳躍廣義條件異方差模型(ARMA - GARCH - Jump,以下簡稱GARCH—Jump)研究歐盟碳排放配額(EUA)期貨的套期保值作用。研究錶明,EUA價格齣現跳躍的彊度、幅度是時變的,且EUA現貨價格波動對基差的影響是非對稱的,GARCH—Jump模型能有效刻畫EUA價格的波動聚類和尖峰特徵,能更準確分析EUA現貨價格與基差的聯閤動態特徵。套期保值分析錶明,通過GARCH-Jump模型得到的最優套期比率是時變的,GARCH—Jump套期比率能有效地降低投資組閤收益的方差。
본문채용일개이원도약엄의조건이방차모형(ARMA - GARCH - Jump,이하간칭GARCH—Jump)연구구맹탄배방배액(EUA)기화적투기보치작용。연구표명,EUA개격출현도약적강도、폭도시시변적,차EUA현화개격파동대기차적영향시비대칭적,GARCH—Jump모형능유효각화EUA개격적파동취류화첨봉특정,능경준학분석EUA현화개격여기차적연합동태특정。투기보치분석표명,통과GARCH-Jump모형득도적최우투기비솔시시변적,GARCH—Jump투기비솔능유효지강저투자조합수익적방차。
A dynamic hedging strategy based on a bivariate GARCH- jump model augmented with autoregressive moving average (short for GARCH- Jump model) jump intensity is proposed to analyze the hedging effect of the EUA future. The result shows that the GARCH - Jump can capture the characteristic of volatility clustering and leptokurtosis. The jump intensity and size are time varying, and the impact of EUA price volatility to basis is asymmetric. The optimal hedge ratio is time varying, and hedging effect test shows that it sub- stantially reduces the variance of the portfolio.