Contrary to popular thinking among some diversity consultants, employing workers of many different races has little effect on average turnover in a retail workplace, although employees do quit more often if fewer colleagues are the same race, according to a recently published case study by two professors at the Haas School of Business.<br><br><a href='http://www.berkeley.edu/news/berkeleyan/2006/11/29_diversity.shtml&#039; target='_blank'>http://www.berkeley.edu/news/berkeleyan/2006/11/29_diversity.shtml&lt;/a&gt;&lt;br&gt;&lt;br>