Business is like the game of Poker
Most players, when they win a hand, think about what the winnings can buy. The strongest players think about something else: how the winnings can be put back into the game to make the next hand easier to win. That difference — between collecting an advantage and compounding one — is the difference between a business that merely survives behind its moat and a business that widens the moat every year.
Warren Buffett has said that when he evaluates the managers of the companies Berkshire Hathaway owns, one of the qualities he looks for is exactly this instinct. He wants managers who take each year’s profits and reinvest them in ways that make the business harder to attack: better products, stronger distribution, lower costs, deeper customer loyalty. A moat, in his thinking, is not a wall you build once and then admire. It is a ditch that must be dug deeper every year, because your competitors are standing on the other side of it with shovels of their own. The profits of a good year are the only material he will ever get for the digging.
Walmart is the clearest illustration I know. In its growth decades, Walmart took the savings its efficient operation produced and did something that looked, to outside observers, almost irrational: it gave the savings away in the form of lower prices. But the lower prices drew more customers. More customers meant more volume, and more volume meant greater buying power with suppliers. Greater buying power produced more savings — which became still lower prices. The wheel turned on itself. Each year’s advantage was spent purchasing the next year’s larger advantage, and the distance between Walmart and its competitors did not merely hold. It grew, quietly and relentlessly, until it became nearly impossible to close.
A moat that is not being widened is being narrowed by everyone else’s effort. That is the arithmetic nobody prints in the annual report. Your competitors are reinvesting their profits too, or trying to. Standing still does not preserve your position; it surrenders your position at the speed of somebody else’s work.
I learned this in smaller arenas. In my law practice, the lawyers who treated a good year as a harvest — larger draws, less attention to the unglamorous work of serving clients well — discovered within a few years that the clients had quietly thinned out. The ones who treated a good year as seed corn, who reinvested in their people, their systems, and the slow accumulation of trust, were still busy when the lean years arrived. Land taught me the same lesson from the other side. A rental property milked for its rent and never improved does not hold its value; it declines toward the condition of the worst building on the street. The owner who puts money back into it — the roof, the systems, the appearance — is not being generous to his tenants. He is widening his moat.
Notice what widening the moat is not. It is not expansion for its own sake, and it is not spending profits merely to look bigger. Plenty of companies have reinvested themselves into ruin by buying growth that added revenue without adding strength. The question is never simply, “Did we spend the profits?” The question is, “Are we harder to attack than we were a year ago?” A dollar that lowers your costs, deepens a customer’s loyalty, or raises the price a competitor must pay to hurt you has widened the moat. A dollar that only enlarges the operation has done nothing but make the target bigger.
Here is the takeaway. Once a year, audit your advantage the way Buffett audits his managers. Take last year’s profits and sort them into two piles: what you collected, and what you converted into a stronger position. Then ask the only question that matters — if a smart, hungry competitor studied your business today, would he find it harder to attack than he would have found it a year ago? If the answer is no, your moat is narrowing, however healthy the income statement looks. The winners at the Big Table are not merely the players who win a hand. They are the players who use every hand they win to make the next one easier.
