Companies that have no debt can’t go bankrupt. • Managerial ability may be important, but it’s quite difficult to assess. Base your purchases on the company’s prospects, not on the president’s resume or speaking ability. • A lot of money can be made when a troubled company turns around. • Carefully consider the price-earnings ratio. If the stock is grossly overpriced, even if everything else goes right, you won’t make any money. • Find a story line to follow as a way of monitoring a company’s progress. • Look for companies that consistently buy back their own shares. • Study