FOR years now, many businesses and individuals in the United States have been relying on the power of government, rather than competition in the marketplace, to increase their wealth. This is politicization of the economy. It made the financial crisis much worse, and the trend is accelerating.

Well before the financial crisis erupted, policy makers treated homeowners as a protected political class and gave mortgage-backed securities privileged regulatory treatment. Furthermore, they allowed and encouraged high leverage and the expectation of bailouts for creditors, which had been practiced numerous times, including the precedent of Long-Term Capital Management in 1998. Without these mistakes, the economy would not have been so invested in leverage and real estate and the financial crisis would have been much milder.

But we are now injecting politics ever more deeply into the American economy, whether it be in finance or in sectors like health care. Not only have we failed to learn from our mistakes, but also we’re repeating them on an ever-larger scale.

Lately the surviving major banks have reported brisk profits, yet in large part this reflects astute politicking and lobbying rather than commercial skill. Much of the competition was cleaned out by bank failures and consolidation, so giants like Goldman Sachs and JPMorgan had an easier time getting back to profits. The Federal Reserve has been lending to banks at near-zero interest rates while paying higher interest on the reserves the banks hold at the Fed. “Too big to fail” policies mean that the large banks can raise money more cheaply because everyone knows they are safe counterparties.