PHOTOS: Snow gods smile on Europe

Severe winter weather has been causing chaos for many across parts of Europe. Sweden, Italy and Spain are among the countries that have seen arctic weather over the last few days. These countries......

Columbia don on how can firms succeed

Those who can't, teach. That old saw is so pitifully old, it creaks. And to drive home the point is Sunil Gupta.Not only has the Meyer Feldberg professor of business at Columbia Business School......