@ARTICLE{does2007,
     Title={Does Time Varying Hedge Ratio Outperform the Constant Hedge Ratio?},
     Author={Singh, Balwinder and Gupta, Kapil},
     Journal={The Indian Journal of Capital Market},
     Volume={0},
     Number={0},
     Pages={1-10},
     Publisher={Bombay Stock Exchange},
     Year={2007}
}