BUSINESS schools have been widely accused of fashioning the wrecking balls and training many of the demolition crews that have wreaked such havoc in the economy over the past two years. And the crisis, whether it was forged in business schools or not, is undoubtedly making it harder for students to afford their fees, or to get jobs when they graduate: in America only half the class of 2009 had been offered a job three months before graduating. Yet business schools are thriving. More than two-thirds of full-time MBA programmes received more applications this year than last, their best performance for five years, according to the Graduate Management Admission Council, a business-school association. Continua…