If you're launching a business, the odds are against you: Two-thirds of start-ups never show a positive return. Unnerved by that statistic, the author set out to discover why. Based on interviews and surveys with hundreds of founders and investors and scores of accounts of entrepreneurial setbacks, his findings buck the conventional wisdom that the cause of start-up failure is either the founding team or the business idea. The author found six patterns that doomed ventures. | 
