Permanent OwnershipNarrow moat

Berkshire buys businesses to keep them, not to dress them up and flip them, and that permanence is a competitive advantage few other owners can offer. A business owned by Berkshire is freed from the short-termism and quarterly theater that plague public companies and from the five-year clock that governs private equity. It can invest for the long run, secure that it will not be sold out from under its people or squeezed for a quick return — a security attractive to good managers and good businesses alike.

The advantage is partly economic and partly cultural. Economically, permanence lets subsidiaries make long-payoff investments and avoid the wasteful churn of being bought and sold; a business can compound quietly for decades under one stable owner. Culturally, the promise of a permanent home is exactly what draws sellers who care about their creation, which feeds the deal flow that keeps improving the quality of the collection. Permanence is both a promise to sellers and a gift to the businesses themselves.

The cost of permanence is the flip side of its virtue: Berkshire keeps its laggards as well as its winners. A commitment never to sell means being stuck, at least reputationally, with businesses that decline or industries that fade, since selling would violate the very promise that makes Berkshire attractive. In practice Berkshire will part with a truly broken business, but its strong bias against selling means capital can stay tied up in mediocre operations longer than a colder owner would tolerate — the price of a promise worth keeping, made across sixty-plus acquisitions¹.