Wanting what works to work

A book with the title [amazon_link id=”0674089030″ target=”_blank” ]What Works: Gender Equality by Design [/amazon_link]is very enticing. Could the author, behavioural economist Iris Bohnet, really have the effective, evidence-based techniques for improving the earnings and job market outcomes of women relative to men? Does she have the answer to the dilemma that a woman can get on by acting like a man, only to be criticised and disliked for being unfeminine.

[amazon_image id=”0674089030″ link=”true” target=”_blank” size=”medium” ]What Works: Gender Equality by Design[/amazon_image]

Well, Bohnet’s list of interventions is very persuasive and she cites plenty of supporting evidence. The first part of the book sets out the evidence of bias, conscious and unconscious. Part 2 is about people management, and focuses on businesses’ hiring, promotion and management. Part 3 is about education. The final part is a set of broader insights about ‘designing’ diversity and covers topics such as the importance of role models, the effectiveness of diverse groups in decision-making contexts (boards and elsewhere), and the role of social norms, of transparency, and indeed of ‘design’, a mnemonic for ‘data, experiment and signpost’. Bohnet argues that use of data uncovers bias, experimenting with changes, and using signposts – largely behavioural nudges – to change people’s behaviour. Do this, she promises, and gender inequality could be overcome within years, not decades.

i’m inclined to agree. The book’s evidence seems solid. There are many examples, such as Google’s discovery that its female employees were twice as likely to quit as the average. It mined its data to discover that the issue was really that parents were more likelt to leave, and it therefore extended both maternity and paternity leave. Now there is no difference between male and female quit rates. The Kennedy School’s own points system (Bohnet is a professor there) looks reasonably effective.

However, the question [amazon_link id=”0674089030″ target=”_blank” ]the book [/amazon_link]doesn’t address is what will get institutions and businesses to bother. Even those paying lip service to gender equality don’t have a strong incentive to change their ways, run (largely) by men (largely) for men. Why would they care if profits could be a bit higher in the long run if they acted differently? Things suit them very well as they are. It is hard to see organisations implementing the ‘what works’ measures described here unless they happen to be run by men (or women) who are already converts to the cause. It’s like the old joke about how many psychiatrists it takes to change a lightbulb (only one, but the lightbulb has to really want to change).

So I am ever more certain that tougher legislation will be required to get things moving. Targets for women on the boards of listed companies. Mandated minimum quotas for women and members of minorities in the senior ranks of bodies funded by taxpayers. When that day comes, all those institutions will be able to turn to this book to find out how to do it.

Multi-sided reading

Unusually for me, I’ve been reading three books – normally it’s strictly one at a time. One (a few pages late at night) is Louise Fresco’s [amazon_link id=”0691163871″ target=”_blank” ]Hamburgers in Paradise: The Stories Behind the Food We Eat.[/amazon_link] It’s a beautiful book and luckily lends itself to dipping in, with information, anecdotes, culture, economics. I’m enjoying very much, in bite-size nuggets.

[amazon_image id=”0691163871″ link=”true” target=”_blank” size=”medium” ]Hamburgers in Paradise: The Stories behind the Food We Eat[/amazon_image]

Another, also too bulky to carry round on the Tube, is the physical version of David Evans’ [amazon_link id=”1468102729″ target=”_blank” ]Platform Economics: Essays on Multi-Sided Businesses[/amazon_link] – there is a free online version. This is a very clear introduction to the economic models, but the book is now somewhat out of date despite being published as recently as 2011. Evans has a new book out with Richard Schmalensee, [amazon_link id=”1633691721″ target=”_blank” ]The Matchmakers: The New Economics of Multisided Platforms[/amazon_link], due out in May.

[amazon_image id=”1468102729″ link=”true” target=”_blank” size=”medium” ]Platform Economics: Essays on Multi-Sided Businesses[/amazon_image]  [amazon_image id=”1633691721″ link=”true” target=”_blank” size=”medium” ]The Matchmakers: The New Economics of Multisided Platforms[/amazon_image]

The third is a proof copy of another book on platforms, [amazon_link id=”0393249131″ target=”_blank” ]Platform Revolution: How Networked Markets Are Transforming the Economy and How to Make Them Work for You[/amazon_link] by Geoffrey Parker, Marshall Van Alstyne and Sangeet Paul Choudary. It’s out in April so I’ll have to hold off reviewing this one, which is more of a business ‘how too’ book than one for economists, but is in the vein of that classic [amazon_link id=”087584863X” target=”_blank” ]Information Rules[/amazon_link] by Varian and Shapiro in setting out (for the layperson) the economics behind the business advice.

[amazon_image id=”0393249131″ link=”true” target=”_blank” size=”medium” ]Platform Revolution: How Networked Markets are Transforming the Economy–and How to Make Them Work for You[/amazon_image]

Taxing you healthy

A guest review by Koen Smets.

Policymaking is increasingly turning to behavioural insights: the Nudge Unit, set up nearly six years ago in the UK, is going from strength to strength, and numerous other countries have followed suit. So it is remarkable to find a new book advocating a boring, conventional economic instrument to influence consumer behaviour: the tax incentive. In [amazon_link id=”1907994505″ target=”_blank” ]Bad Habits, Hard Choices[/amazon_link], ‘recovering economist’ David Fell argues for what he calls a ‘SmartVAT’ to make people choose healthier food and drink.

[amazon_image id=”1907994505″ link=”true” target=”_blank” size=”medium” ]Bad Habits, Hard Choices: Using the Tax System to Make Us Healthier (Perspectives)[/amazon_image]

It is a short book, the length and readable style of which belie both the complexity of the subject matter and the radical nature of the core idea: “a bold proposition that goes well beyond a sugar tax or a fat tax.”

To build his argument, Fell introduces a large number of concepts involved in what he sees as problematic consumption: VAT and excise duties, information asymmetry, market theory and consumer choice theory, externalities, commitment strategies and many more. It is impossible to cover them all in depth in a mere 120 pages, but Fell does a remarkable job in the book in describing and illustrating the various – often conflicting – forces at play.

He discusses the fine balance government needs to strike with its surreptitious taxes, managing the disquiet of businesses, media and consumer while still trying to maximize revenue; as Colbert said, “The art of taxation consists in so plucking the goose as to obtain the largest possible amount of feathers with the smallest possible amount of hissing.” Fell also highlights the limitations of the conventional wisdom that says taxation will depress the demand for taxed goods, for example when the demand is inelastic – as it is for petrol.

However, while Fell may be a self-confessed recovering economist, he is clearly not the kind of two-handed economist who drove Harry Truman to distraction. He paints a decidedly one-handed picture, populated with economists as dogmatic market fundamentalists, food manufacturers as manipulative seducers, and hapless consumers whose choice is restricted to products that deliver the returns demanded by ‘capital’. Even for someone agreeing that the suppliers play a significant role in influencing our consumption habits, this becomes increasingly irritating.

The informed consumer, according to Fell, is as much a myth as the hyper-rational homo economicus. The messages we get are biased, partly due to our own cognitive limitations (few people consult the nutrition labels), and partially because what benefits the suppliers is emphasized. Marketeers extol the virtues of luxury goods (another recurring bugbear), but don’t promote the free and healthy activity of walking – leading to the author’s somewhat bizarre claim that, “Capital doesn’t like it when you walk because it gets no reward.” Would we conclude that, say, the Women’s Institute doesn’t like us windsurfing because it does not promote this activity?

Fell uses his own research in [amazon_link id=”1907994505″ target=”_blank” ]the book[/amazon_link], showing for example that 31% of his sample agrees that they “buy more than they need most times they visit the supermarket”. The vagueness of such surveys (for example, how do we define ‘what we need’?) doesn’t stop him drawing strong conclusions.

In short, the author blames information asymmetry, orchestrated by ‘capital’, as the main cause of obesity, and argues that what we need is a collective commitment device. If, as a society, we agree to subsidize ‘good’ food and slap a hefty tax on ‘bad’ food, then that will help us stick to our commitment to eat more healthily – much like setting our alarm clock tonight commits us to getting up on time tomorrow morning.

Fell sets out a 4-step approach to execute his radical proposal. The first two steps rest on a deliberative process: citizens and experts come to a consensus, not only on what constitutes healthy and unhealthy foods, but also on what the subsidy and tax rates should be. Will this work? Fell refers to a few cases where a similar process was used, but these differ both in scope and scale from what he himself calls a “dauntingly difficult” task.

Once it is clear which goods needs to carry which tax, the third step is quite straightforward: implement the new rates, and make the taxes and subsidies salient at the point of sale. The final step is to correct the mistakes the author believes will inevitably be made.

The author confesses to little confidence in the practical adoption of his plan: too much resistance from vested interests: the dreaded economists, the Treasury, the government, the media… and the consumer. That may be so, but there are two even bigger problems.

Fell’s SmartVAT assumes that consumers are rational, responding to the tax incentives. But citizens are resourceful, as the consumption of tobacco illustrates. It is mostly the less well-off who smoke, which suggests that they drop other purchases in order to be able to buy cigarettes. And if people can find ways of importing cheap smokes (legitimately or otherwise), they will do the same for ‘bad’ foods. Ironically, Fell personally illustrates the futility of raising the cost of unhealthy products: the price of cigarettes has risen twice as fast as inflation in the last 25 years, but he is still buying them.

But the most serious criticism that should be levelled at Fell’s idea is that he attaches no value at all to the pleasure people might derive from consuming foods he considers as unhealthy. There is, in his view, no trade-off to be made, and he explicitly rejects the notion that there are no unhealthy foods, only unhealthy diets. So the majority of people who consume ‘bad’ foods in moderation will be penalized, having to pay more for a harmless form of enjoyment.

It is this disregard for the core of all economic thinking, the trade-off, which makes the book ultimately a disappointment for this reviewer.

Koen Smets is an accidental behavioural economist, who works as an organization development specialist. He uses elements from both orthodox microeconomics and behavioural economics to bring about behavioural change. He is on Twitter as @koenfucius

I’m with the robots

[amazon_link id=”1612194559″ target=”_blank” ]We, Robots: Staying Human in the Age of Big Data[/amazon_link] by Curtis White was recommended to me by somebody whose judgement I trust; he said it was a bit irritating but had made him think.

[amazon_image id=”1612194559″ link=”true” target=”_blank” size=”medium” ]We, Robots: Staying Human in the Age of Big Data[/amazon_image]

I didn’t get beyond the irritating. It’s a ranty, rhetorical 279 page tour around all the things the author doesn’t like about the digital world. That’s a lot. Science. Economics. Business. Environmentalism. Oh yes, robots. All economists equally wrong, naturally, in this book (and all American males) – Tyler Cowen, Paul Krugman, Larry Summers, Paul Romer – & it’s hard to tell why they are bracketed together. Is it because they all research…. the economy?

What does pass muster? A Marxist view of the alienation of labour. The prize exhibit is the cubicle life of Dilbert cartoons; this is written by somebody who has never been inside an old-fashioned factory. Structuralism is admired – presented, tendentiously, as the logical conclusion of Hume’s empiricism and scepticism. Nietzsche gets the last word.

On top of that, it’s badly written. I had to keep re-reading sentences to figure out their meaning. Sentences that began with a phrase like ‘This dichotomy…’ turned out to be referring to a dichotomy a paragraph or so earlier. Thoughts lie buried under a mudslide of words.

[amazon_link id=”1612194559″ target=”_blank” ]We, Robots[/amazon_link] cites and quotes at length from a far better, challenging, thought-provoking book, [amazon_link id=”1781688451″ target=”_blank” ]The Happiness Industry[/amazon_link] by Will Davies. My advice is to read that instead.

[amazon_image id=”1781688451″ link=”true” target=”_blank” size=”medium” ]The Happiness Industry: How the Government and Big Business Sold us Well-Being[/amazon_image]

Masters of ‘Metrics

The prize that goes to winners of The Enlightened Economist book of the year prize is the offer of lunch or dinner with me. Latest winners Josh Angrist and Steve Pischke, authors of [amazon_link id=”0691152845″ target=”_blank” ]Mastering ‘Metrics[/amazon_link] (the winning title) and [amazon_link id=”0691120358″ target=”_blank” ]Mostly Harmless Econometrics[/amazon_link], took me up on that today. It was a most enjoyable lunch, and I learnt that they’re currently writing an article on how to teach econometrics – apart from the obvious: use their book.

The two Masters of 'Metrics

The two Masters of ‘Metrics

In fact, Mastering ‘Metrics is a brilliant text to use for undergraduate econometrics. From what they said at lunch, the article will have other good advice. Let’s hope the teaching of econometrics becomes part of the broader wave of curriculum reform, spearheaded by CORE.

[amazon_image id=”0691152845″ link=”true” target=”_blank” size=”medium” ]Mastering ‘Metrics: The Path from Cause to Effect[/amazon_image]  [amazon_image id=”0691120358″ link=”true” target=”_blank” size=”medium” ]Mostly Harmless Econometrics: An Empiricist’s Companion[/amazon_image]