A five part series on behavioral economics

This week’s posts were going to be about podcasts that I listen to, but I’ll push that out to next week.

I and a colleague of mine at the Gokhale Institute (which is where I work) are running a five day seminar at the Institute on behavioral economics. This one is for undergraduate students only, but based on how this one turns out, we might do a couple more through the year. But for that reason, I figured we might take a look at behavioral economics is, and explore work being done in this area, and why it matters.

In this post, I’ll give you an overview of behavioral economics, and in the five subsequent posts that follow, I’ll detail what we spoke about in each session.

First things first: behavioral economics really is a tautology, because economics is the study of choice, and we make our choices given what we know and given what we feel.

The trouble is, modern economic theory (most, but not all of it) would tend to say that what we feel ought not to matter, and in fact doesn’t actually matter in the real world. Except we’ve all demolished a big fat bowl of ice-cream because we’re feeling blue, the diet be damned. We’ve all bought items on sale on Amazon, when we clearly had no need for them. And we’ve all chosen to play a game on the phone over completing a task at hand, and hang the consequences. I could go on (and not just where individuals are concerned, but firms and governments too!), but you get the picture.

We’re all predictably irrational.

In a sense, behavioral economics is about the first word in that link. As a social scientist, it’s not much use to say that we’re irrational. That’s akin to saying that there’s nothing that we can say, do or predict about the choices that all of us make.

But predictably  irrational? Ah, how exactly? If our irrationality can actually be modeled, then perhaps we could understand how and why we make the choices we do. Even better, maybe we could push people towards eating more salads and less ice-cream. Although you should note that there are some people in my tribe who don’t necessarily think this to be a good idea.

Still, the study of

a) whether we think “rationally” or not, and…

b) if not, then can we think systematically about how we are “irrational” and why…

c) and can we use our findings from this exercise to make people, institutions and therefore societies behave differently (and hopefully better)…

…is the study of behavioral economics.

And the five day version (duly expanded) of this is what Savita Kulkarni and I will be talking about at Gokhale Institute over the course of the next five days. And I’ll keep you guys updated as we go along.

Links for 18th July, 2018

  1. Don’t imagine you’re smarter. Read this with today’s context in mind.
  2. Anchoring, perhaps? Who knows what this is really about.
  3. Not every app design, in my opinion, has improved over time. Some definitely have, though.
  4. Via MR, a useful list for “top economists” to follow on Twitter. There’s not a single Chinese or India-specific Tiwtter handle on that list, by the way.
  5. Color me mildly pessimistic. Building cities is hard, but it is also very necessary.

Links for 15th July, 2018

  1. Scale is a difficult thing to achieve
  2. On why public transport matters. The SUV risks
  3. There are honeymoons, and there are honeymoons
  4. Ways to think about IVF
  5. If you ever feel like stealing bees, this is how to do it

Links for 14th July, 2018

  1. This is from a while back, but here is a small write-up about a comparatively lesser known story, of the Indian Navy’s “mutiny” in 1946.
  2. A must listen episode on (on the face of it) hitchhiking, on Conversations with Tyler 
  3. Spiders can fly (more interesting than you’d have thought)
  4. Further updates on the Fermi paradox
  5. Very long, partly fascinating essay about memory, via MR.

Links for 12th July, 2018

  1. Interpreting what North Korea saysNorth Korea says 
  2. On how the trade war started and why 
  3. Excellent post by Scott Sumner on things all of us should know more about
  4. Gulzar Natarajan advises leaping before looking… but then taking a very long hard look after.

Links for 11th July, 2018

  1. Giving trade a bad name
  2. Lessons from Cliff Asness, via Barry Ritholtz
  3. The article makes it clear that we’re a while away, but on printing human organs
  4. Growth is impossibly hard.
  5. On comparative advantage, and it not being a static concept.
  6. A contrarian take on the inversion of the yield curve

Links for 9th July, 2018

  1. The basketball experiment (and I envy you if you have never seen this before), looked at another way.
  2. Tyler Cowen is a hero. No two ways about that.
  3. What doesn’t kill you makes you stronger, the footballing edition. Also, do read Antifragile, by NN Taleb.
  4. The Economist magazine tries to make sense of Netflix
  5. Restructuring Indian finance is hard.

Staring into the abyss: A review of To the Brink and Back, by Jairam Ramesh

A while back, I read a book by Sanjaya Baru, famous nowadays for having penned the book “The Accidental Prime Minister”. While that book was certainly more topical, his other book, the one I am referring to right now, is far more interesting. The title of the book is , quite simply, “1991”, and the subtitle is “How P.V. Narasimha Rao Made History”.

The reason I bring that book up right now is because Mr. Baru begins his book by speaking about how, while at an event  at a university near Delhi, he asked students about the importance of the year 1991, and some levity aside, many people didn’t have a clue. Things became, he goes on to mention, slightly better when he asked the same question to a slightly older age group, and many people mentioned the reforms of 1991. What those reforms were, and who was responsible for them is a story, Mr. Baru says in the introduction to his book, many people are not aware of. Given the subtitle of his book, it is clear who the protagonist is – and further evidence in favour of his argument is to be found in the book that is the subject of this blog post: “To the Brink and Back: India’s 1991 Story”, by Jairam Ramesh.

The book (a very short one) is Mr. Ramesh’s recollections of those tumultuous three months or so, when, as he so memorably puts it, history was put in motion. I often say in classes I teach that India gained her political independence in 1947, and started to gain her economic independence in 1991. The first half of that statement is a fact, and the second half is false, too true or not true enough depending on where you stand on the spectrum of economic ideology. But no matter where you find yourself on that spectrum, what is indisputably true is the fact that 1991 was a turning point for the Indian economy.

Having read both books, and some others besides, on the events of 1991, here is my simple list of why 1991 was so important:

  1. A lot of people today don’t know, or don’t want to know this, but there was, for quite a few people, a choice to be made. “To default or not to default” was an actual dilemma for some, and reading about those times makes it clear that the former option was certainly on the table. It is our great good fortune that the people in charge, and the then finance minister in particular, did not view it as a dilemma – India simply would not default. That in itself was a signal to us and the rest of the world – and the importance of that signal cannot be overstated. Put another way, the economist took a political stance that had truly far reaching economic consequences.
  2. India finally became competitive in the global markets, because of the devaluation of her currency. A strong currency is often taken to be a proxy for a strong nation, but nothing could be farther from the truth. If you chart India’s exchange rate movements (vis-a-vis the dollar, say) against her GDP growth rate, you can see this quite clearly. That devaluation mattered, it truly mattered. Ask Infy. And as the book makes clear, getting people to agree with this decision wasn’t all that easy.
  3. This point is the most important of the lot: our industrial policy changed on the morning of the budget. Yes, Manmohan Singh presented that budget, but the far more important announcement was about our industrial policy changing – for the better, at long, long last. This includes changes in the MRTP (Monopolies and Restrictive Trade Practices)Act, changes to the way foreign firms could invest in India, and changes in what kind of licences would be needed to produce, well, almost anything. And much else besides, I should add – but the point that one should understand is that the shackles were taken off where India’s producers were concerned.

There is, please understand, much more to the reforms of 1991, and most of it is contained in the book. But to me, the book is important because it makes a point about a political decision that had far reaching economic ramifications: India would honour her debt, no matter what the cost, and no matter what changes needed to be made to her industrial policy. This (political) commitment to do the right thing has had (economic) consequences that we are benefiting from today and beyond.

The book speaks about who did what before, during and after the three months of June, July and August 1991, and credit is given and withheld in various cases by Mr. Ramesh. See, for instance, his repudiation of Yashwant Sinha’s claims to have been the true father of the whole reforms story.

I’m not so interested in who did what though – reading the book to understand what happened, and how it happened is a fascinating lesson in the art of political economy. The chapter on the roll back of the increase in urea pricing, for example, is a great for understanding how to push what you want through – you can almost see Cialdini nodding in approval.

Is the book written for the layperson who knows nothing of economics? I will not pretend that it will be easy going, but I will say this: you will appreciate the importance of 1991 far more at the end of it. And as a citizen of India, four hours or so is a worthwhile price to pay to understand how we got to be where we are.

Choices, Costs, Horizons and Incentives

Economics, many people think, is about money and finance. Nothing could be farther from the truth.

Which is not to say that economics is not about money and finance – it is about that as well, but you’d be doing economics (and yourself) a disservice if you thought that economics was only about money (and finance).

A larger, more general framework for thinking about economics is to realize that it is about four things that I mentioned in yesterday’s post: choices, incentives, costs and horizons. Of the four, perhaps the one that is most misunderstood is incentives. Yes, incentives can be, and very often are, monetary in nature – but very often is not always.

Tyler Cowen puts it well in his book “Discover Your Inner Economist”:

The central concept of economics is not money but rather incentives. Quite simply, an incentive is anything that motivates human behaviour, or encourages an individual to make one decision rather than another. An incentive can be money, but it can also be a tip, a smile, or an act of praise.

Something that acts as a push for us to do (or not do!) something is all an incentive is – and if you get incentives right, you can get people (including yourself) to do what you want them to.

IMG_20180428_213957393_LL
Not all incentives need be monetary

Incentives, and the way we interpret them, are what help us choose, and that’s the second key concept in economics: it’s a matter of being incentivized to make a particular choice, out of all the alternatives available. Quite often, though, understanding the set of choices itself can become tricky.

Think about this little puzzle (adapted from a truly wonderful book called “Thinking Strategically: The Competitive Edge in Business”, by Avinash Dixit and Barry Nalebuff):

Amar, Akbar and Anthony are three friends who, having quarreled, have decided to settle that quarrel with a shootout. They stand at the three vertices of a triangle, and decide to take turns shooting at each other, one bullet per attempt, until only one person is left standing. Amar will go first, he can shoot at either Akbar or Anthony. Assuming Akbar survives, he’ll go second, and he can shoot at either Amar or Anthony, assuming Anthony is alive, and Anthony will go third. And on and on it will go, in this order, until only one person is alive. Amar is a lousy shot – he shoots with only 10% accuracy. Akbar is pretty good, he’s working with 80% accuracy, while Anthony is just plain lethal – fully 100% accurate.

Now, Amar hires you as a consultant and asks, whom should I shoot?

What would your answer be?

It turns out that Amar’s best option is to shoot in the air (because even if you succeed in killing whoever you aim at, the survivor is left with only Amar to aim at).

The point is: any well informed decision needs two things to begin with: a clear idea of all the choices available, and a clear idea of the incentives involved (“I hate Akbar! I want to kill him!” may be a great incentive, but a higher probability of staying alive is surely the better incentive).

And this applies to everything in life: one helping of desserts or two? (Hint: how about none?). Only one more YouTube video before I get back to completing this blog post, or ten? (How about re-reading “Thinking Strategically” instead?)

The trouble is, our brain isn’t always the best at interpreting incentives correctly, which brings us to the third key concept in economics: horizons. Or, if you have had enough nerd talk for one day, we could also call it the instant gratification monkey problem. Call it what you will, the problem is that we tend to prioritize choices that payoff in the short run, but create problems in the long run. If you’ve ever had that last “one for the road” drink, or ended up actually eating that second dessert (and who hasn’t?), you don’t really need an explanation for this. We tend to choose those options that payoff over the short horizon, and ignore the long term consequences.

And in retrospect, that pounding headache the next morning is really not worth it, or to put it another way, the cost is too high.

Costs are not just monetary in nature, of course, and hangovers are a great way to explain this. You don’t pay any money the next day, but nobody who has experienced one would argue that hangovers are in any way cheap. Worse, costs are almost always a little higher than you think.

The price of the party the night before isn’t just the morning after, but it is also the fact that you could have spent the last evening reading a book, watching a movie, going out for a drive – anything but the party. Not only do you not get to watch that movie (the opportunity cost, as we economists call it), but you also have the goblins drumming away inside your head.

Choices, incentives, horizons and costs.

The truly tricky thing, and this is what makes economics such a worthy endeavour, is that each of these four aren’t understood by all of us in a rational, objective manner. Our brain processes each of these for us in ways that are subject to the way we are raised, the environment in which we are raised, our emotional state at the time of making decisions, and much else besides. Our decision making, predicated on these four concepts, is gloriously uncertain, fickle and inconsistent.

But it is exactly this that makes studying economics such a lot of fun.

External Resources about Supply and Demand

Where should you go online if you want to learn more about supply and demand?

Well, lots of places, really – but here’s a short list of the very best that is out there in making things simple and accessible.

A very good place to start (apart from the very beginning), is with the Principles of Economics section on Marginal Revolution University. Their very first video on the demand and supply section is here, and you can simply click upon the “Next Video” link to go through all of them.

The Wikipedia article is not bad, although a little wordy, in our opinion.

Here’s a simple post by a VC explaining how Uber uses these basic concepts to, well, run a business currently valued at $ 67 billion.

And of course, any and every text on economics will cover the topics we have spoken about here. Most of the links above, and all of the textbooks you might care to look at will be at a more complicated level than in our posts – but that’s the point. After you finish reading these, you should feel equipped to deal with the slightly more difficult ones.

Right, one topic from macroeconomics (the Solow Model) and one from microeconomics (the demand supply framework) down, and lots more to go. To keep things interesting, we’re now going to delve into an exciting area of economic research – behavioral economics. Starting with the next post!