Yes, I have a bunch of thoughts.
It's very difficult for me to feel confident about saying whether there is vigorous competition in the market, soft competition, collusion or something else going, so I am not going to comment on any particular industry, including the banking industry.
I do think there is a kind of modesty to competition law. I've been describing this already, but here is another way there is a kind of modesty to it.
Some markets are not going to be able to support many players. Let's suppose there are scale economies or regulatory barriers to entry, which may well be relating to financial services. There may be circumstances where there aren't a lot of players in a particular market. If that's true, then it's unsurprising that the firms take each other's conduct into account. They say things like, “If I'm really aggressive on price, what's my rival going to do? They will probably be aggressive on price back, and there is a small number of us, so why don't we just carry on quietly and not be that aggressive?”
That, I think, is a very real concern in oligopoly situations. It's something that competition law actually does not do a very good job of addressing.
Competition law looks for specific kinds of practices that exclude competition, but it doesn't look to the exploitation of what commerce would call market power. If you end up being in a position where you're somewhat insulated from competition because there aren't that many firms, you can charge a price that's a little higher than your costs. Competition law is not price regulation. Competition law tends to steer away from that.
I think if you find yourself in a position like that and there is an industry of public concern, competition law is probably not going to supply the right kinds of answers. It's not institutionally equipped to do things like price regulation. There may be other kinds of institutions that are better equipped or maybe these other institutions could be created.
I think the modesty that I am calling for in this one little space—competition law—need not extend to the law more generally. I think there are hard questions to be asked and answered, but my point is really just an institutional policy instrument choice.