For example, by examining the link between each KLD category and accounting-based financial performance, Berman et al. (1999) showed that only employee relation and product categories led to improved profitability.的翻译：正在翻译，请等待... 什么意思？中文翻译英文，英文翻译中文，怎么说？

例如，通過等審查每KLD類別和基於會計的財政表現之間的鏈接， Berman。 (1999年)表示，仅雇員聯繫和產品類別導致了被改進的有利。