THE IMPROVEMENT FOR OPTION EVALUATION METHOD

The relevant improvement suggestion was put forward aiming at the problem that may take place during the application of option evaluation method.We should not take the effective deadline of mining titles as the effective deadline of option directly.The practical deadline of option is the surplus that was reduced from the effective deadline of mining titles by basic term needed for mining.On the base of analysis,the article improved the calculation model of option evaluation method,and made the comparison between the evaluation results by practical case.