What is March Madness in the U.S.? From March 17 to April 6, sixty-eight college basketball teams will battle it out. All the games are free to watch on TV or online, and many workers are thought to slack off a little as they keep track of their bets. One firm thinks $1.2 billion worth of productivity is lost during March Madness. CCTV America’s Owen Fairclough explained more on Global Business.