UBS upgraded Monster Worldwide Inc. (NYSE:MWW) today to buy from neutral while maintaining its neutral rating on the stock. The bank believes the 44% decline in Monster’s share YTD provides an attractive riskreward valuation, and says their checks suggest that 2011 recruitment budgets have not meaningfully changed as of yet and their second quarter looks to be on track. Monster Worldwide has a potential upside of 81.7% based on a current price of $13.31 and an average consensus analyst price target of $24.18.