It may be snowing back east, but March Madness has arrived just the same. Time to invite everyone to test your uncanny ability to predict the outcome of the U.S. college mens’ basketball tournament. Field seems particularly wide open this year. If you want to participate, go to the Econbrowser group at ESPN, do some minor registering to create a free ESPN account if you haven’t used that site before, and fill in your bracket with who you think might be the winners of each game. Just be sure you complete your predictions before Thursday, because the Econbrowser group does not allow changes in your bracket after the round of 65 begins on Thursday.