“I’m shocked – shocked! – to find that irresponsible lending is going on in here”

The Bank of England's getting a bit worried about consumer credit.

Last week, Alex Brazier, the Bank's director for financial stability, noted that the volume of car loans, credit card balances and other personal loans had surged by 10% in the past year.

Brazier warned that lenders risk slipping into a "spiral of complacency", notes The Times.

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Dare we say it, but they're not the only ones being complacent...

Summer time, andthe lending is easy

The Bank of England's a bit worried. This time last week, Brazier gave a speech in Liverpool about how everyone needed to get a grip.

He noted that lending was up 10% on the same time last year. That's at a time when household incomes are rising by just 1.5% a year.

Of course, I'm sure Brazier understands that those two things are not unconnected. Lending may well be soaring precisely because wages aren't rising by very much and haven't been for a long time.But his point was more to lenders lending a load of money to someone whose income is growing a lot more slowly than their outgoings is a recipe for disaster.

Meanwhile, yesterday, credit ratings agency Moody's joined in with the red alerts. It downgraded the outlook for bonds backed by British consumer debt. "Household debt is high and still growing, leaving consumers vulnerable to an economic downturn, while higher inflation, weaker wage growth, and levels of indebtedness leaves those in lower-income brackets the most exposed."

As The Guardian notes, Moody's is particularly worried about securities backed by sub-prime mortgages, buy-to-let mortgages (many of which are interest-only and so depend to an extent on house prices going up), securities backed by car loans, and credit-card loan backed securities.

In short, Moody's is worried that UK consumers are over-extended to the point where anyone who has loaned money to them (or bought those loans in the secondary market) is heading for disappointment.

This is all very well, of course. But something else happened at roughly this time last year, I seem to remember. The Bank slashed interest rates even further, to 0.25%. And it also decided to print a load of money to flood the economy.

Depending on whether you voted to remain in the EU or to leave, you'll either think that was a sensible precaution or a hysterical over-reaction. But regardless of your take, I think it's fair to suggest that this might have encouraged some of the overzealous lending that the Bank is now apparently worried about.

Yet, it's not really made an appearance in the public conversation about this. I'mtrying to imagine the discussion at the Bank.

Mark Carney: "How did this happen?"

Alex Brazier: "I have no idea.It's almost as though some powerful body with complete control over interest rates has set them so low that people no longer see the point of saving."

Carney: "Yes. And lenders are acting as though they have reason to believe that they won't be held accountable in any way, shape or form for making bad lending decisions. It's as if they can't lose!"

Brazier: "It's a mystery."

Carney:"Yup. I suppose we'd better keep an eye on it. You planning to watch this week's Monetary Policy Committee meeting?"

Brazier: "Nah. They never change anything. It's getting a bit same-y."

An epic tale of how money always finds a way

Debt strikes back' or The Return of the Regulator'?

And Bank governor Mark Carney has told lenders that it wants details on how they approve loans to their riskiest customers. Lenders have to let the Bank know within the next five weeks. The Bank has also brought forward the latest batch of consumer credit stress tests because it's so concerned about the rapid climb in debt over the past year or so.

The thing is though, this is all very well but easy money finds a way. The history of financial markets is an epic (though not very heroic) tale of crafty or short-sighted lenders, who find ways to funnel cheap money to desperate or fraudulent borrowers, bypassing all of the hurdles raised by well-meaning-but-deluded or hugely-politically-compromised regulators.

The only way to issue a genuine warning shot across the bows would be to raise interest rates at the Bank's rate-setting meeting on Thursday. It wouldn't be particularly radical. A simple quarter-point hike would merely reverse last year's panic cut after all.

Yet it would at least show all these irresponsible lenders and borrowers that the most irresponsible lender of them all the Bank of England was embarking back on the long journey to the straight and narrow path.

Is it likely to happen? I struggle to guess at this one, to be honest. I can see that if the Bank is genuinely getting worried about lending levels, then they might consider hiking rates just to pour a bit of cold water on the markets.

At the same time, if they're worried about the economy slowing down, they might be reluctant to do anything that could be taken as being a bigger step than it really is.

On balance, my money is on rates staying the same this week, particularly as I can't see Carney voting for a rise, and the governor tends to have a bit of added clout.

My money is also on this particular borrowing boom ending the same way most of them do in a heap of bad debt, and a pile of bankruptcies. But who knows? Maybe this time tinkering at the edges with macro prudential policy will actually work.