“Business schools teach baby MBAs the same lessons: to avoid industries with high competition, to do what it takes to keep potential competitors out, and, if all else fails, to buy them up.17 Warren Buffett explains that, in business, he looks “for economic castles protected by unbreachable moats,”18 because “the products or services that have wide, sustainable moats around them are the ones that deliver rewards to investors.”19 That.”
