The importance of fun, team building competition has been more effective than the sometimes cut throat side of big ticket prizes.

FORBES: The 5 Sure Keys to Taking Sales to the Stratosphere in 2013

One of the hottest contenders was Bristol-Myers Squibb 's (nyse: BMY - news - people ) Vanlev, but that drug proved to be no more effective than other medicines and also caused a potentially deadly swelling of the throat and mouth in some patients.

FORBES: Magazine Article