Abu Hanifah/iStock via Getty Images For numerous investors, including myself, one of the pivotal factors in considering long-term investments is the margin of safety. When I analyze stocks, it is often first important for me to find the margin of safety, if there is one. Or the business model must be so innovative, and the source market must represent such a large demand, that the valuation of the company automatically takes a back seat. And it's better to have both the first and the second - which is e ...