I found out that someone who has just been hired by my company is being paid more than I am-even though I have similar responsibilities and qualifications. Should I tell my manager that I know this information? Should I ask for a raise?

If you found out about the discrepancy because you inadvertently saw a confidential form or document listing his salary, you need to keep that discovery to yourself. Most likely, you shouldn't have been privy to that information anyway. But if someone-either the new employee or a coworker-is broadcasting the news without discretion, yes, you need to let your boss know. Your manager should be told when someone is indiscreetly discussing sensitive issues such as compensation. Don't gossip or retell the story with all the sordid details -- just plainly present the information, explaining that you thought he or she should be aware of the situation.

Before you ask for a raise, thoroughly review your accomplishments, credentials and skills, and research your market value. Don't automatically assume that you're just as qualified as the new hire and, therefore, should be paid the same, if not more. He or she may have hands-on experience in a particular field that's important to your company or advanced technical skills that you're not aware of. The best idea is to evaluate your own experience, skill sets, and contributions without comparing yourself to the other person.

Build a business case for why you deserve a raise. If you think it might present a clearer picture, revise your resume to reflect your recent accomplishments-pretend you're "re-applying" for your job. Consult salary surveys and research compensation trends. Is the labor market so competitive in your specialty or industry that your skills and abilities are more highly valued? Document this and gather information to back up your assertion. When you meet with your manager, discuss your findings and ask to reevaluate your compensation level.