Berkshire Hathaway is known to many as the investment vehicle of Warren E. Buffett. To some extent, this reputation is well founded, given the investment success that the company has enjoyed under his leadership. Less attention, however, has been paid to the management success of Berkshire Hathaway. By 2008, the array of companies that Berkshire Hathaway owned was unique in its diversity. Even more unique was the operating structure that the company employed to manage these operations. It was a model based on extreme decentralization of operating authority, with responsibility for business performance placed entirely in the hands of local managers. While many public corporations implemented strict controls and oversight mechanisms to ensure management performance and regulatory compliance, Berkshire Hathaway moved in the opposite direction. Many of the company’s operating principles were in stark contrast to those generally employed by most public corporations. Company shareholders would have to decide for themselves whether these operating principles posed a risk to long-term performance or whether, contrary to expert opinion, they were a source of competitive advantage that could be sustained in the future.