Yahoo Turns Down Microsoft

In February 2008, Microsoft offered about $44 billion for Yahoo, a 62 percent premium over its share price. Jerry Yang and the board called it inadequate and held out for more. Microsoft raised its bid, then walked away. Over the next eight years Yahoo cycled through CEOs, watched Google and Facebook eat its position, and in 2016 sold its core internet business to Verizon for roughly $4.5 billion, a fraction of what it had turned down.

This case is a clean, beginner-friendly study of how a single decision compounds for years. It sharpens the discipline of evaluating any offer, partnership, or exit against your realistic alternatives rather than against an ego-anchored peak. The reasoning error here has a name and a fix, but the case lets you arrive at them yourself by sitting inside the boardroom's logic first.