股票指数现货交易制度对股票市场的正面影响大于负面影响。
This system has more positive influences than negative one on the stock market .
股票指数现货交易制度研究
On Spots Transaction System of Stock Index
这种做法忽略了股票指数期货和现货间的基差风险。
This approach ignored the stock index futures and the cash-poor risks .