Deciding which business school to attend, if any, is a difficult decision, and thus many a business newspaper offers its ranking by way of help: The Economist, the Financial Times, The Wall Street Journal, US News & World Report, Business Week, and many others. But the rankings are bewildering themselves. For example, the Financial Times puts the University of Pennsylvania’s Wharton School and London Business School at the top of their list, whereas you rank them eighth and ninth, respectively (“Resilient Wreckers,” October 17, 2009). These differences reflect different methodologies, you explain. And you add that your own ranking relies heavily on students’ own assessment. But how in the world has your ranking of Wharton changed from seventeenth to ninth in a single year? Similarly, how did Harvard Business School jump from twelfth place in 2008 to fifth in 2009? Are these differences also due to different methodologies? With help like this, deciding which business school to attend is very like lottery. Come to think of it, this reflects the business world out there pretty well, too.