The Dodd-Frank financial regulation bill of 2010 will help the big banks by adding complexity and overhead costs that widen the protective “moat” around the biggest guys. I’ve been arguing this all along, and today JP Morgan CEO Jamie Dimon agrees.

Here’s the report from an interview with Dimon (via The Business Insider):

And not citing regulatory risk was interesting. [Dimon] even pointed out that while margins may come down, market share may increase due to a “bigger moat” – We were surprised that regulatory risk was not mentioned as one of the key risks. In Dimon’s eyes, higher capital rules, Volcker, and OTC derivative reforms longer-term make it more expensive and tend to make it tougher for smaller players to enter the market, effectively widening JPM’s “moat.” While there will be some drags on profitability – as prices and margins narrow, efficient scale players like JPM should eventually be able to gain market share. [emphasis added]

This reminds me of how Goldman Sachs CEO said “we will be among the biggest beneficiaries of” the bill. Of course, all along, we’ve seen this. Here’s the bank lobby, in early 2011, saying “hands off Dodd-Frank.”

This all means more bank consolidation, which, of course, exacerbates the problem of too big to fail. I think billionaire Obama fundraiser Warren Buffett agrees with Jamie Dimon, and that helps explain his bullishness on big banks.

Big business benefitting from regulation, at the expense of smaller players and (I believe) consumers, is standard. Here are some more examples: