As global markets expand, employers worldwide are growing more concerned with losing good workers to competing nations, a recent survey finds.

Over 30 percent of 28,000 employers from 27 countries surveyed by Manpower Inc., a Wisc.-based employment consulting firm, said they feared losing talented employees to other countries. About two thirds said they felt governments and the business sector weren't doing enough to prevent the outflow of talent.

South and North America topped the list of world regions most concerned with the issue, led by employers in Peru, while respondents in China reported being the least concerned, the survey found.

The United States was among the countries with the smallest number of concerned employers, at just 14 percent.