MGM Resorts International, the biggest casino operator on the <a href="http://topics.bloomberg.com/las-vegas/"
BY MATT JARZEMSKY AND NATHAN BECKER
MGM Resorts International's loss narrowed significantly after a $548 million charge related to tax-benefit reduction a year earlier, as the company's casino revenue declined.
"We are encouraged in early 2011 by the level of business activity we are seeing," said Chairman and Chief Executive Jim