The best of Paul Krugman vs Reddit

Nobel prize-winning economist fields questions from "The Front Page of the Internet". What could go

Paul Krugman has a new book coming out, which means he is doing a lot of thing that one doesn't normally see from a Nobel Prize-winning economist. First he debated Ron Paul on Bloomberg TV, including a bizarre interlude involving inflation in third-century Rome. Then yesterday, he did a question and answer session with Reddit, the hugely popular social news site which brands itself "The Front Page of the Internet".

Under the headline IamA Nobel Prize-winning economist and New York Times columnist, Krugman – username nytimeskrugman – spent a couple of hours answering questions from Reddit users. Here are some of his best answers.

Responding to user sychosomat, who asked about the problems caused by the inability to perform experiments in economics, Krugman wrote:

Well, not being able to do experiments is a problem, but not as bad as all that. We do have statistical techniques for trying to sort out what's going on, although I'm skeptical about their power. But mainly we can look for "natural experiments", which often tell you a lot. In End This Depression I talk about how wars provide a natural experiment on fiscal policy; right now forced austerity in Europe is providing another set of natural experiments.

You may ask whether both sides in every debate won't nonetheless find ways to support their positions. My answer here is that this is not, in fact, happening. On the question of whether austerity is expansionary or contractionary, we had some alleged evidence for expansionary effects, but it was quickly shot down by the normal process of scholarly discussion. In any normal scientific debate, this would now be a settled issue.

I guess that what I'm saying here is that while the non-experimental nature of economics is an issue, the apparent inability to resolve differences that you see right now is about politics, not the inherent problems of the discipline.

Cthwaites asked how close we are to repeating the mistake in 1925, when Britain returned to the gold standard for seven disastrous years. Kurgman:

All around Europe's periphery they're doing it as we speak, er, type. The euro has served as the functional equivalent of the gold standard.

The difference for, say, Spain is that since they don't have their own currency, it's much harder to change course than it would have been for Britain under gold. But if you look at, say, Latvia, they're doing the full Churchill -- and being hailed as a role model even as they enforce a devastating slump on themselves.

Asked by Curbsidejohnman to give the best argument against austerity, Krugman replied:

I think it is to point out that if nobody is buying, nobody can sell. Austerity in a depressed economy makes the depression deeper, and that is, I believe, a point people can grasp. Of course, it's a point made easier to grasp now that the Irish and others have given us such clear examples of how bad the results of austerity can be.

Bloometal asked about Krugman's views on behavioural economics. Krugman wrote:

I think there's a lot of very good work in behavioral econ. But I don't expect a unified theory for many, many years. There are just two many ways the assumption of perfect rationality can fail, and I don't think we have enough broader understanding to put it all in one package.

That said, we can use behavioral econ even as it is, as long as we're modest about modeling. As long as we are prepared to say "this is how people actually seem to behave" without demanding general theorems -- for example the obvious reluctance to accept nominal wage cuts -- we can go a long way toward analyzing real-world issue in a way that can guide both prediction and policy.

Finally, one of Krugman's answers which works best without any context:

Shave around it every day, and get your wife to clip it fairly often.

(Oh all right, he was talking about his beard)

Photograph: Getty Images/Reddit.com

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Is there such a thing as responsible betting?

Punters are encouraged to bet responsibly. What a laugh that is. It’s like encouraging drunks to get drunk responsibly, to crash our cars responsibly, murder each other responsibly.

I try not to watch the commercials between matches, or the studio discussions, or anything really, before or after, except for the match itself. And yet there is one person I never manage to escape properly – Ray Winstone. His cracked face, his mesmerising voice, his endlessly repeated spiel follow me across the room as I escape for the lav, the kitchen, the drinks cupboard.

I’m not sure which betting company he is shouting about, there are just so many of them, offering incredible odds and supposedly free bets. In the past six years, since the laws changed, TV betting adverts have increased by 600 per cent, all offering amazingly simple ways to lose money with just one tap on a smartphone.

The one I hate is the ad for BetVictor. The man who has been fronting it, appearing at windows or on roofs, who I assume is Victor, is just so slimy and horrible.

Betting firms are the ultimate football parasites, second in wealth only to kit manufacturers. They have perfected the capitalist’s art of using OPM (Other People’s Money). They’re not directly involved in football – say, in training or managing – yet they make millions off the back of its popularity. Many of the firms are based offshore in Gibraltar.

Football betting is not new. In the Fifties, my job every week at five o’clock was to sit beside my father’s bed, where he lay paralysed with MS, and write down the football results as they were read out on Sports Report. I had not to breathe, make silly remarks or guess the score. By the inflection in the announcer’s voice you could tell if it was an away win.

Earlier in the week I had filled in his Treble Chance on the Littlewoods pools. The “treble” part was because you had three chances: three points if the game you picked was a score draw, two for a goalless draw and one point for a home or away win. You chose eight games and had to reach 24 points, or as near as possible, then you were in the money.

“Not a damn sausage,” my father would say every week, once I’d marked and handed him back his predictions. He never did win a sausage.

Football pools began in the 1920s, the main ones being Littlewoods and Vernons, both based in Liverpool. They gave employment to thousands of bright young women who checked the results and sang in company choirs in their spare time. Each firm spent millions on advertising. In 1935, Littlewoods flew an aeroplane over London with a banner saying: Littlewoods Above All!

Postwar, they blossomed again, taking in £50m a year. The nation stopped at five on a Saturday to hear the scores, whether they were interested in football or not, hoping to get rich. BBC Sports Report began in 1948 with John Webster reading the results. James Alexander Gordon took over in 1974 – a voice soon familiar throughout the land.

These past few decades, football pools have been left behind, old-fashioned, low-tech, replaced by online betting using smartphones. The betting industry has totally rebooted itself. You can bet while the match is still on, trying to predict who will get the next goal, the next corner, the next throw-in. I made the last one up, but in theory you can bet instantly, on anything, at any time.

The soft sell is interesting. With the old football pools, we knew it was a remote flutter, hoping to make some money. Today the ads imply that betting on football somehow enhances the experience, adds to the enjoyment, involves you in the game itself, hence they show lads all together, drinking and laughing and putting on bets.

At the same time, punters are encouraged to do it responsibly. What a laugh that is. It’s like encouraging drunks to get drunk responsibly, to crash our cars responsibly, murder each other responsibly. Responsibly and respect are now two of the most meaningless words in the football language. People have been gambling, in some form, since the beginning, watching two raindrops drip down inside the cave, lying around in Roman bathhouses playing games. All they’ve done is to change the technology. You have to respect that.

Hunter Davies is a journalist, broadcaster and profilic author perhaps best known for writing about the Beatles. He is an ardent Tottenham fan and writes a regular column on football for the New Statesman.

This article first appeared in the 05 February 2015 issue of the New Statesman, Putin's war