Determining the Optimal Hedge Ratio of Gold Coin Futures; A Comparative Approach

The aim of this study is to calculate the optimal hedge ratio of gold coin future contrasts with different econometric methods and compare their hedging effectiveness with each other. Used models are OLS, VAR and VECM that estimate the hedge ratio to be static over the time and multivariate GARCH models that estimate the hedge ratio to be vary over the time. The studied time period was from Tuesday, November 25, 2008 to Monday, June 01, 2015 and we have used the future and spot prices of gold coin in this period. To increase the correlation between future and spot returns we have calculated the optimal hedge ratio with weekly returns in addition to daily returns. Finally, the comparisons show that the use of multivariate GARCH models leads to better performance in daily returns but in weekly returns, static models have better results.