Trying to escape from media consensus and groupthink about the economy, I came on this thoughtful piece by Gabriel Sherman arguing that the legislative changes in the US are beginning to bite on Wall Street.

Banks have always had occasional bad years, but the sense on Wall Street is that this bad year is different. Over the past several weeks, I have had wide-ranging conversations with more than two dozen senior Wall Street executives, traders, bankers, hedge-fund managers, and private-equity investors. And what emerged is a picture of an industry afflicted by a crisis it would not be flip to call existential.

The crash four years ago was shocking enough to the financial class. But what is happening on Wall Street now is even more terrifying. No doubt the economy itself—the crisis in Europe, the effects of the tsunami in Japan, America’s sputtering recovery—has played a large part in the financial industry’s struggles. But even the most stubborn economies improve eventually. The bigger issues are structural. The Dodd-Frank financial-­reform act, much maligned, has already begun to change the shape of the financial system—even before a number of its major provisions are proposed to go into full effect this coming July. Banks are working hard to interpret Dodd-Frank’s provisions in a way most favorable to them—and repealing Dodd-Frank is a key piece of Mitt Romney’s campaign platform.

To comply with the looming regulations, banks have begun stripping themselves of the pistons that powered their profits: leverage and proprietary trading. In the wake of the crash, Morgan Stanley and Goldman Sachs converted to bank holding companies to tap the “discount window,” the Fed’s pipeline of cheap funds that gave the banks an emergency source of liquidity. That move seemed smart then, but the stricter standards required of banks have now left them boxed in.

With all the major banks unable to wager their own funds on big bets, there’s a growing sense that the money that was being made during the Bush boom won’t be back. “The government has strangled the financial system,” banking analyst Dick Bove told me recently. “We’ve basically castrated these companies. They can’t borrow as much as they used to borrow.”

If true, this is good news. Worth reading in full.