Shanghai A-StockShenzhen A-Stock 例句: This paper validates the existence of the size effect on Shanghai A-Stock Market through the data of 180 sample stocks included in Shanghai 180 index and the new method put forward by Robert Fernholz. 本文是用上证180指数的180支样本股票所产生的数据和Robert Fernholz提出的新方法来验证规模效应在沪市A股市场的存在性。