Yesterday I gave evidence to the Parliamentary Commission on Banking Standards, on competition (lack of) in retail banking – alongside two distinguished former competition regulators, John Fingleton and Clare Spottiswoode. The transcript will be published later. My message was that banks are mistaken when they say they are competing vigorously with each other – just look at the cut-throat rates on offer in the ‘best buy’ comparison tables. My experience on the Competition Commission for eight years taught me that big firms always regard their competition as intense but they can’t distinguish their intense oligopolistic rivalry from a competitive market. That intense – often loss-leading – rivalry over a narrow range of goods for a small group of customers is cross-subsidised by high margins on other extensive areas of business. (Indeed, you can tell what the banks think of the small group of mobile customers they are competing over from the fact that the industry term for them is “rate tarts”.)

Most bank customers are inert. Switching banks is a huge hassle. If it goes wrong, the consequences are an even bigger hassle, causing enormous potential disruption to bill payments and so on. The only alternatives available will be just as poor in terms of service quality or rates offered. The lack of switching and the cross-subsidies between different groups of customers are clear signs that competition in retail (and SME) banking in the UK is inadequate.

Understandably, there has been a lot of focus since the crisis on tougher regulation. But regulation alone will not improve things for customers. If you rely on regulation to improve service standards, banks will focus on their regulators. It will take competition to get them to focus on their customers. Indeed, more and more regulation will make it harder to get new competitors into the market, and the regulators are not sufficiently focused on using competition as a tool to achieve their aim of improving consumer outcomes – after all, regulators regulate. Competition works indirectly but it is a powerful force for serving consumers, and in particular for innovating and anticipating customer needs.

There is a good example in the Competition Commission’s decision to break up the BAA airport monopoly. The counter-argument was that there are economies of scale, and it’s a complex business, with break-up disruptive and uncertain. But who would have predicted that after the divestment, Gatwick Airport proved able to clear the unexpected snow off its runways quickly and efficiently in December 2010, while Heathrow, still in the hands of the old monopolist, was paralyzed for days?

I’ve not quite finished Anat Admati’s and Martin Hellwig’s [amazon_link id=”0691156840″ target=”_blank” ]The Bankers’ New Clothes[/amazon_link]. It’s absolutely excellent at skewering the bogus claims the banking lobby makes about the consequences of increasing equity requirements and limiting bonuses. It addresses regulatory issues.

What it doesn’t do is consider the competition question. Indeed, in all I’ve read about the banks in recent years, competition issues have been overlooked. There is a misperception that “too much” competition contributed to the crisis, I think, but that’s to make the same mistake of confusing a competitive market with oligopolistic feuding in some areas. The empirical evidence is mixed but leans firmly towards indicating that more competitive banking systems are more stable – the banks tend to be smaller so the “too big to fail” problem is less acute, and smaller banks are simpler so regulators (and their boards) can monitor them more easily.

The Parliamentary Commission on Banking Standards was, though, clearly well aware of the importance of increasing competition and new entry. More power to their elbow.

[amazon_image id=”0691156840″ link=”true” target=”_blank” size=”medium” ]The Bankers’ New Clothes: What’s Wrong with Banking and What to Do about It[/amazon_image]