Johan Fourie's blog

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Posts Tagged ‘economics

How finance evolves

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Evolve

Why is it that stock markets tend to be depressed during winter months? Or that investors with too little emotional response (or too much) tend to be less profitable than those with just the right amount of emotion? Or that traders tend to make more money on days when their levels of testosterone are higher than average?

In a fascinating new book, Andrew Lo builds on the corpus of behavioural science research to outline a new theory of financial markets. His basic point: homo economicus is dead. The hyper-rational human that always optimized every decision, most famously portrayed in the Efficient Markets Hypothesis of Eugene Fama that has ruled the field of finance at least since the 1980s, does not exist. His new book, Adaptive Markets: Financial Evolution at the Speed of Thought, explicates his Adaptive Markets Hypothesis, first proposed in 2004 as a substitute for the Efficient Markets Hypothesis.

In short, the Adaptive Markets Hypothesis accepts that humans are biological beings, and that our biology limits our ability to optimize every decision as the Efficient Markets Hypothesis predicts. Most importantly, though, our ‘irrationality’ is not random. This means that we consistently make the same ‘mistakes’, something that behavioural scientists have known for quite some time. One of these mistakes, for example, is that we often link events together because they happen to occur close to each other. As Lo puts it: ‘We humans are not so much the “rational animal” as we are the rationalizing animal. We interpret the world not in terms of objects and events, but in sequences of objects and events, preferably leading to some conclusion, as they do in a story.’

Telling stories is one way we try to make sense of the world, even if those stories are sometimes false. We do this because, given the environments that we encountered, this was the most evolutionary successful behaviour. But that has consequences: If our environment change, our biological decision-making processes might not be equipped to deal with the new environment. In Lo’s words: ‘“Rational” responses by homo sapiens to physical threats on the plains of the African savannah may not be effective in dealing with financial threats on the floor of the New York Stock Exchange’.

Often the real world is not very different from the survival-of-the-fittest world our ancestors encountered on the African plains. Many times, humans do optimize their behaviour. This is why the Efficient Markets Hypothesis could hold for so long, treating ‘irrational’ behaviour as random outliers that will be averaged out in the marketplace. But as Low demonstrates in countless examples, often humans (and by implication traders) behave ‘predictably irrational’, reacting to fear systematically different than to reward, for example, and opening opportunities for windfall profits on the financial markets. That is why some famous investors, accounting for these predictably irrational heuristics of humans, can be consistently successful.

The good news, though, is that we are not like other animals. We do not have to wait for evolution to take its course, molding us to our environment through natural selection. We have the ability to learn and adjust through trial and error. High-frequency trading is a great example: speed is everything in financial markets, and automated trading programmes have replaced specialist human traders who are just too slow to recognize and respond to the predictably irrational human errors. But even this is changing, as Lo explains: ‘At first, these high-frequency traders made windfall profits, since human specialists were sluggish and inefficient in comparison. However, there ultimately came a point where high-frequency traders were mainly competing with each other. To succeed in this financial arms race, high-frequency trading firms had to invest in faster and more expensive hardware. At the same time, however, these firms were scouring the market for any trace of “juice” that might be left. In a very short amount of time, high-frequency trading was pushing against its natural evolutionary limits. It had unexpectedly become a mature industry, with low margins on trades and low overall profits.’ High-frequency trading is now on the decline, as more and more exchanges start implementing ‘no high-frequency trading zones’. The environment is changing, and those high-frequency traders that do not adapt, will perish.

The book presents not only a fascinating new theory that can explain why some investors continue to be successful despite the prediction of the Efficient Markets Hypothesis, but it also situates this theory within the context of broader developments in finance. We learn why the Efficient Markets Hypothesis was so appealing, why earlier attempts to use evolutionary thinking in finance never caught on, and what this new theory might say about the future of finance. It also has a cautionary word about how we train the next generation of finance gurus: ‘For the mathematically trained economist, it’s sometimes difficult to think in evolutionary or ecological terms, but sooner or later, this way of thinking will be domesticated (another biological metaphor), and will become another standard tool for economists to use, just as molecular biologists use it today.’

Just like the finance industry employed mathematically-inclined engineers and physicists in the last few decades, perhaps biology will be the training-of-choice for the next generation of investment firms. Perhaps. What we do know is that the environment is changing, and that means that traders will have to adapt too if they are to survive, and thrive. As Lo explains: ‘An evolutionarily successful adaptation doesn’t have to be the best; it only needs to be better than the rest.’ Let the games begin!

*An edited version of this first appeared in Finweek magazine of 7 September 2017.

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South Africa’s Great Leap Backward

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Great Leap Forward

Over the next few days, South Africa’s new Minister of Finance, Malusi Gigaba, will meet with representatives of the IMF, the World Bank, international investors, and ratings agencies in the US. His aim is to restore confidence, to steer the South African ship through the troubled waters of junk status.

This was a tough task a week ago, but his appointment of Chris Malikane, associate professor of Economics at Wits University, as adviser, has made this almost impossible. Malikane penned an 8-page manifesto early in April, which will apparently form the basis of his policy advice to Treasury. The document is available here: Chris Malikane – Concerning the Current Situation 2017. (Brace yourself: the phrase ‘white monopoly capital’ appears 58 times. The words ‘science’ or ‘innovation’, not once.)

I read the document just before I had to teach a class on China’s Great Leap Forward yesterday, and the similarities were startling. Malikane calls for the expropriation of ‘banks, insurance companies, mines and other monopoly industries, to industrialise the economy’. He wants to establish a state bank, nationalise the Reserve Bank, and ‘expropriate all land without compensation to the ownership of the state’. Oh, and he also wants ‘free, quality and decolonised education, free and quality healthcare, improved quality housing, community infrastructure, etc., affordable and safe public transport, and affordable and reliable basic services such as water, sanitation and electricity’.

An excellent Business Day editorial summed it up perfectly:

Malikane’s ideas are rooted in Marxist voodoo economics. For a finance minister to be taking advice from one with such outmoded and unorthodox ideas puts SA on the path towards such economic disasters as Zimbabwe and Venezuela. Doing so is an act of grotesque irresponsibility.

Just as we all borrow from banks to pay home loans, so South Africa borrows from international lenders to pay our expenses (which are more than our income, i.e. our budget deficit). If international investors do not believe we will be able to repay, they will make our loans more expensive by raising interest rates. It is not that these international investors want to exploit us – just as banks do not exploit us when we voluntarily go to them for loans – it is just that they want to make sure they get their money back. How an academic macroeconomist at one of South Africa’s top universities do not understand this, I do not know. One has to wonder what he teaches his students at Wits?

I hope the IMF, World Bank, investor and ratings agency representatives ask Gigaba about the economics of his new adviser. I hope they ask him what exactly Malikane will do in his capacity as adviser. I hope they ask him to state his own views about the market economy, about the interplay of fiscal and monetary policy, and, just for fun, about the role of Marxist economic thought in understanding international capital flows. And I hope they ask him whether he’s heard of China’s Great Leap Forward, and its consequences for the Chinese economy.*

*Spoiler alert: 43 million people died.

Books to make you think this summer

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It’s – finally! – summer again. After three winters in a row, Helanya and I are looking forward to some sun, sea and sand (and watermelon, and ice-cold beer, and cricket on the tele, and litchis, and did I mention sun?). And what better way to enjoy summer than with excellent local and international books, fiction and non-fiction to make you think. Here’s what I’m recommending for those long, lazy days on the beach:

2016book1Nomavenda Mathiane’s excellent Eyes in the Night tells the true story of the life and times of the author’s grandmother, Gogo Makhoba. Apart from the title (I don’t quite understand the relevance), the book is an eye-opener on a neglected part of South African history: the tale of a young girl’s adventures during and after the Anglo-Zulu war of the late nineteenth century. It is an incredible story of resilience in the face of almost unthinkable atrocities. And yet, with the author resisting the urge for melodrama, grandmother okaMakhoba and her experiences of running from the English Redcoats, working in the household of the horrible Oubaas, and then running away to Zulu missionaries who convert her to Christianity, complicates our often oversimplified version of history. Who stole land, and at what cost? How did Christianity affect Zulu traditions? What are the differences between township and traditional Zulu culture? It is good to be reminded that history is never black and white. Through her grandmother’s extraordinary life, Mathiane gives South Africans a vibrant picture of our own interconnectedness and, for lack of a better word, complicatedness. Eyes in the Night is a book I enjoyed thoroughly and is my book of the summer.

2016book2Deon Meyer is a household name, and not only in South Africa. Yet his stories are as South African as they come. He has produced another gem with Koors (as far as I can see, still only available in Afrikaans). What happens when 95% of humanity is wiped out by a deadly virus? How do we rebuild civilization? How do societies develop? Yes, this is the fictional story of a young South African boy and his dad trying to survive the aftermath of a deadly virus, but it is more than that: it is a philosophical reflection on the roots of development. What role for specialisation, for trade, for politics, for religion in the creation of societies, and how do these interact as these societies become more complex over time? (Sidenote: political economists familiar with the literature on stationary and roving bandits would particularly enjoy this. If I have to be critical, I would have liked to see more economics – for example, the birth of currency in this post-apocalyptic world, or the emergence of debt and credit, although I guess these are less sexier topics.) Combine this fascinating setting with a murder plot and you’ve got a book that is much like all his others: unputdownable. And I promise: you won’t be able to predict the twist at the end…

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I’ve just started Richard Baldwin’s The Great Convergence, but have seen enough to recommend it. Globalization is not popular, yet it continues to lift many out of poverty. Baldwin’s clear analysis of an increasingly complicated phenomenon helps us understand how the the cost of moving goods, ideas and people has shaped, and will continue to shape our economies – and politics. Richard Evans is a historian I greatly admire, and he seems to have produced a wonderful new account of the nineteenth-century in Europe: The Pursuit of Power. (Sidenote: I also love the cover.) The Information Nexus presents an intruiging new thesis that explains the rise of capitalism not so much as an accumulation of capital but instead as an improvement in our ability to record and process information.

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Johan Norberg (great name) shows why we should be a little less despondent about the events of 2016: the world is still a much better one than the one of we inhabited a decade or five decades earlier. One way to summarise the book: ‘200 000 people were lifted out of poverty yesterday’ is a newspaper headline that could have appeared every single day the last decade. Donker Stroom is an award-winning true story of an Afrikaner writer and poet and his adventures in England during the Anglo-Boer War. Still unread, but it comes highly recommended.

I will post a couple of my Finweek columns over the next few weeks, but this will be the last personalised blog post for the year. Thanks again for continuing to read, and share my posts: I appreciate all the feedback and support (and criticisms) I receive.

2016 has been a tough year in many respects. Let’s hope 2017 will be filled with happy surprises.

Written by Johan Fourie

November 29, 2016 at 14:06

How to decolonise an Economics curriculum

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Mario4

The economics curriculum at South African universities is in crisis, claims Ihsaan Bassier, an honours student at UCT. He writes that UCT’s curriculum is ‘largely abstracted from South Africa’s economic crisis and reinforces an anti-poor understanding of policies’. He explains:

Economics is presented as an amoral subject, only examining mechanistic questions and optimising efficiency. If it is amoral, why is so little attention given to heterodox thought? Capitalism arbitrarily privileges those with money over others in the most violent form possible, through a system of class protection, marginalisation of the poor and gross injustice. Rather than being amoral, undergraduate economics in fact promotes a horrible moral: that “rationality” is defined as profit-maximisation and that the point of departure is our violent system. Students are trained to be apologists for capitalism and alternatives are marginalised.

It is both bad economics and anti-poor for students to be bombarded with arguments that government intervention and minimum wages are “bad”. Social benefits are blamed for unemployment, as if it is preferable to allow people to starve; regulation is demonised, as if unfettered business would solve South Africa’s economic problems. Some attention is eventually given to market failure, but only as a token.

Why do we not learn more seriously about other systems and behaviours, about technical aspects of socialism and redistribution, about power, about how racism interacts with capitalism, the pervasiveness of rent and out-of-equilibrium dynamics, or an endless number of alternatives that my education has not exposed me to?

UCT’s curriculum is quite similar to that of Stellenbosch, where I teach. So let me respond to these rather big accusations, and then make a suggestion.

Capitalism arbitrarily privileges those with money over others in the most violent form possible. Economics equips students with a set of tools that allow them to explain the world around them. One of those tools is statistical analysis, which means we can test a hypothesis – like the above statement – with evidence from the real world. And unfortunately for Ihsaan, the real world evidence is pretty clear on this one: capitalism, a system based on the principle of individual rights, has created remarkable economic freedom for humanity over the last three centuries. Consider this: the real income of the median person in the world doubled in the period between 2003 and 2013, a period that included a financial crisis. In 1981 more than half the people in the world lived in absolute poverty. Today, it is less than 20%. It is simply wrong to declare, without proof, that capitalism arbitrarily privileges those with money. Millions of Indians, and Chinese and, yes, Africans too, have higher living standards than their parents did, and that is highly correlated with more market activity, not less. (In fact, privileging arbitrarily is exactly what communism does, by removing people’s individual freedoms and choices. Just ask the Latvians or any other Eastern Europeans who suffered its consequences.)

Global poverty the last two hundred years

Global poverty the last two hundred years

That is not to say that everything about capitalism is great. Capitalism is not one thing – it morphs into different forms depending on the political and social context. Capitalism in America is certainly more unfettered than capitalism in, say, France. And there is certainly space for more debate about the type of capitalism we need in South Africa.

But those debates need to be based on sound theories and falsifiable evidence. Economic policy arguments – Is a higher minimum wage better for the poorest? Do social benefits lead to unemployment? Does regulation impede growth? – are all empirical questions, one that economists’ statistical toolkits can answer. Yes, we have theories about how the world works, but as Dani Rodrik explains in his excellent new book, Economics Rules, there is not one single (better) theory, but a menu of theories that economists can use to understand their world. Think of a theory (or a model) as a map. There is no single map that explains everything. Sometimes you need a world map just to look at countries. Sometimes you need a street map to take you to your destination. Other times you need a map of the soil quality if you want to sow for the coming season. Economists’ models are the same. We use different models in different contexts, and what makes a really good economist is picking the right model for the right question.

EconomicsRulesHere, Ihsaan’s critique is valid. In first and second year, the emphasis is too much on a single theory (or model) of the world, the standard, neoclassical theory. There are good reasons for this, of course: it is mathematically tractable and provides a solid base for understanding basic human interaction. And that is exactly why it is a good platform for understanding why it does not work in every setting: the assumptions are strong but they are also explicit. Relax some of those assumptions, and the results change. This is exactly how we come to improve our understanding of the world. (In my class, I discuss these assumptions in the South African context and ask the students whether they may or may not hold. That is, I’ve found, how students actually gain a better understanding of the complexities of the problems we have in South Africa, and an appreciation for the tools of economics, of modeling and statistical testing, to solve them.) But a more explicit treatment of the menu of theories economists have at their disposal is necessary.

Ihsaan offers three solutions to solve the curriculum conundrum: 1) admit that we are in a crisis, 2) allocate time to a topic in proportion to its importance in our context, 3) include topics such as poverty, unemployment and inequality from the first year. He fears that too many students leave Economics after only one or two years, without understanding the nuances of the models.

What undergraduate Economics begins to do is equip students with the analytical tools to investigate the important topics of our era. Students need the basic skills of mathematical and statistical analyses to be able to empirically test the questions we are all concerned about. To make it more practical: Debating poverty in South Africa is very difficult if your opponent has no idea how to calculate a ‘poverty line’ or ‘median income’. Or the impact of a higher interest rate with someone who has no idea what the monetary transmission mechanism is. Or the impact of an increase in VAT with someone who has never heard about tax incidence. That is why we need those first three years.

And yes, many students leave after only two years. True, they will have a limited understanding of Economics. But no one expects me to be a psychologist with just Psychology 1, or fluent in French with just French 2. This is why we need to encourage more students to enroll for Economics graduate degrees, and why we need to expose them to more analytical tools, not fewer. We cannot afford to have a society where economic policy is not informed by sound economic analysis undertaken by well-trained, analytical economists. Undergraduate Economics – with the emphasis on rigorous analytical training in microeconomics and macro-economics – needs to stay. This not only gives a solid toolkit for those who want just the ‘essence’ of Economics, but it also allows students to continue with graduate Economics, not only in South Africa but elsewhere. And as I’ve said before, to get into US universities requires a lot of analytical skills.

But I also understand the need for more context, for thinking and discussing the very real material problems that South Africans face. So, I have another solution for Ihsaan, one that betrays my biases: We can look to the past to help us understand today’s problems, and we can look to what the brightest minds have thought about solving these complex problems. In short, we can do more to encourage Economic History and the History of Economic Thought as analytical tools of their own to make sense of today’s development problems.

Ihsaan is fortunate: UCT does have a good undergraduate economic history programme, and a wonderful third-year class in the History of Economic Thought. Global and African economic history provides us with an understanding of the historical roots of poverty, inequality and unemployment; the past does not only explain the present, as one colleague notes, but it is analogous to the present. The History of Economic Thought is concerned with philosophers’ (or theorists’) ideas about solving the economic problem, including philosophers that were very much in favour of socialism. If the neoclassical model is a country-map, the History of Economic Thought is a map of the world, showing how neoclassical thinking evolved and why it became the dominant model.

At Stellenbosch, we have created an entire course in the second year to investigate past and contemporary economic development. One semester of Economics 281 starts with the Neolithic Revolution (circa 8000 BCE) and ends with the Economics of Apartheid. The other semester considers all kinds of current development policies, with a specific focus on South Africa. I see Economics 281 as complementary to the standard Economics courses. You cannot have the one without the other.

You do not decolonise a curriculum by removing content. If you do that, you deny students the opportunity to participate in global debates and the global job market. You decolonise by adding more context and diversity. We advance science by standing on the shoulders of giants. Decolonisation done right can add more shoulders to stand on.

 

Again: What to study in South Africa

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Big shots: Joseph Stiglitz, Jeffrey Sachs and Edward Glaeser, amongst others, were at the ASSA meetings in San Francisco

Big shots: Joseph Stiglitz, Jeffrey Sachs and Edward Glaeser, amongst others, were at the ASSA meetings in San Francisco

My most popular post on this blog – by far! – remains the Why and what to study in South Africa entry I wrote in May 2013. My advice was pretty simple: if you can do math, study a degree where you will develop your math skills further. Math and statistics, combined with economics, computer science and/or engineering sciences, will make you an incredibly desirable employee: both in South Africa and abroad.

I was reminded of this advice when I attended the world’s largest gathering of economists last week in San Francisco. The ASSA meetings spanned three days, had more than 500 sessions with more than 12 000 participants. I presented a paper with Dieter von Fintel (on persistence and reversal of fortune) in a session on apartheid – with excellent papers by Johannes Norling (on fertility), Dan de Kadt and Melissa Sands (on voting), and Martine Mariotti and Taryn Dinkelman (on remittances and migration). And there were many other excellent sessions: notable ones I attended was a session on long-run inequality (with a very entertaining Philippe Aghion), a session on writing books (see photo), and a session on early childhood development (where Melissa Kearney presented a paper I reported on here).

But what reminded me about my math advice was a discussion during one session about the need to diversify academia. One commentator mentioned that the reason for the slow diversification of economics faculty is the high level of mathematics required to do a PhD in Economics in the US. (The slow transformation was quite apparent at the conference: the vast majority of attendees were white males.) Much like in South Africa, black students in the US would often opt out of math courses because of poor grades or a bad experience at school. They are thus more likely to end up in the humanities and less likely to study more ‘mathy’ degrees, like economics.

Yet, there is an increasing realisation that the current state of affairs – the white, male bias – is neither fair nor sustainable. Harvard’s chair of the Economics department, David Laibson, confirmed this: he was quite explicit that Harvard will focus on hiring more diverse staff during his tenure. This is likely to increase the demand for female and black economists (and engineers, scientists, actuaries, statisticians) significantly in the foreseeable future. But to suspect that the market will automatically adjust – that the higher demand will induce more black students to study economics – is unlikely. That is why there are several programmes in the US to inform high school students of the possibilities that economics can offer, showing them the wide applicability of economics in their daily lives. (Economists, for example, study how Discovery Vitality can get their members to live healthier lives, they study how to make things like Uber and Airbnb more efficient, they study what’s wrong with the school system and how to improve it, they study how firms compete and grow, they study the minimum wage and its impact and, yes, they also study financial markets and the banking system. Just watch this video).

Economics departments in South Africa are certainly not doing enough to promote the field to young scholars. Prospective students have a very narrow view of what an economist does, if they have a view at all. I know I never thought much about Economics before I arrived in my Economics 1 class. But the truth is that there is a massive demand for good economists, both in South Africa and, as I witnessed for myself in San Francisco, abroad. South Africa’s services industry needs far more graduates with strong mathematical or statistical backgrounds; the industries of the future will require the analyses and interpretation of (big) data, skills for which economists are well-equipped.

So, what should you study? This is an incredibly tough decision to make at a young age, and it almost certainly will have a big impact on the quality of your life. But here goes: if you have the ability, you can narrow the risk that your choice will turn out to be a bad one by developing your math and stats capabilities. And if you really want to enjoy what you’re doing (yes, I’m biased), combine it with Economics.

Written by Johan Fourie

January 13, 2016 at 19:00

More math and science, please

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Princeton University professor Leonard Wantchekon was the keynote at the African Economic History Workshop in Wageningen, the Netherlands

Princeton University professor Leonard Wantchekon was the keynote at the African Economic History Workshop in Wageningen, the Netherlands (31 October 2015)

I had the good fortune last week of meeting Leonard Wantchekon, Professor of Economics at Princeton University. His is an incredible story: student protester in Benin, sent to prison, tortured, escaped, fled to Canada, shifted from math to economics, and moved up the ranks to be professor at an Ivy League university.

But apart from these gripping experiences, he noted how important the study of mathematics was in his life, and still is for many students in Benin, a country ranked 167th poorest out of 187 countries in the world. That is why six of the top ten mathematicians in Africa are from Benin (his fact), and why he has opened the African School of Economics in the country.

This got me thinking about a topic I’ve written on before: what do the best and brightest South African high school matriculants choose to study? Of course, their choice is influenced by a multitude of factors. Parents have certain expectations, friends weight in, teachers have their say and there are often financial realities at play. They see adverts for different occupations in newspapers and online, they watch series which portray romanticized images of certain careers, and they dream about working with people, or with animals, or ‘not-in-an-office’. (If I had a Rand for every time a student told me that they just don’t want to work in an office… and these are Commerce students. Buddy, you’ll plead for an office after you’ve spent a few years in a cubicle!)

But a new paper by Biniam Bedasso of ERSA suggests that there are other factors, too, which shape our behaviour. Your science teacher is one. The most significant determinant of choosing a major at the University of Cape Town, according to Bedasso, is the number of science courses an applicant took in high school. The more science courses you take, the more likely you are to choose high-earning degrees like Engineering. Not all schools, however, are equally endowed with good science teachers, which means that inequalities at school translate into inequalities at university: black students who are more likely to go to schools with no science teachers are more likely to end up choosing degrees in the Arts and Humanities, for example.

Peer pressure is another factor that influences degree choice. Using enrollment at UCT between 2010 and 2013, Bedasso finds that if your friends choose a Humanities degree, you are 10% more likely than someone with your exact same characteristics that live elsewhere to also choose a Humanities degree. In his words:

Neighbourhood effects shape the choice of individuals through the influence of near-peer role models. Correcting for possible clustering of unobserved preferences along postcodes, a one standard deviation increase in the ratio of near-peers who were admitted to a certain faculty during the last three years is shown to increase the probability of choosing the same faculty by around 10 percent.

He also finds, interestingly, that politics matter. Black South African matriculants are more likely to choose Commerce or Arts degrees, instead of Engineering or Science, if they live in a neighbourhood that is governed by the ANC. It’s difficult to think why this would be: perhaps this confirms the old adage that it is not what you know but who you know. In economics-speak: social capital trumps human capital.

As we would expect, the quality of high school attended also matters. Says Bedasso: “High-achieving applicants who come from less competitive high schools tend to choose high-return majors than similar students from more competitive high schools.” So, if you’re from a poor school but do very well, you are more likely to study Math and Science than if you do equally well in a good school.

Surprisingly, whites weigh expected earnings more heavily in their choice of degree: “White applicants are more responsive to differentials in aptitude-adjusted expected earnings than black applicants.” In other words, whites are more likely to switch to a degree where they can earn a higher salary.

Bedasso thinks these results have profound implications for South Africa:

The gravitation of the children of the political elites towards less technical majors may deprive the political class of sufficient interest in productive activities. This, in turn, is likely to leave the elites with little incentives to respect property rights in the future. Hence, policy measures that will improve the availability of science education at high school level or account for the effect of near-peer role models in college admissions may go a long way in terms of shaping the path of economic development.

I think this is stretching the results, and would be more optimistic. Successful businesses require more than just breakthrough innovations; many of our top accountants and business students end up running technology companies because they know that running a business is not an algorithm to be programmed for success. As a new wave of young, successful black South African entrepreneurs strut their stuff in the business world and the barriers to entrepreneurial and managerial success appear less daunting, the attractiveness of a political career (and academic) will seem less appealing. This young generation, I would argue, is unlikely to cede property rights.

That being said, the need to promote math and science at schools remains imperative. We need more scientists, mathematicians, engineers, and computer programmers to remain competitive in the knowledge economy. We should start by appointing more and better math and science teachers, as Bedasso’s evidence suggests. It would also help if parents support their children to choose these (tougher) subjects. And if friends encourage each other.

I don’t know how to incentivize this change in behaviour. What I do know is that math and science can open doors that, if they remain locked, bar entry to a better life. Just ask a former prisoner from Benin.

Written by Johan Fourie

November 5, 2015 at 08:26

Why you should study Economics (at Stellenbosch)

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Stellenbosch

The applications for Honours or Masters degrees in Economics at Stellenbosch University have just opened. Early next year, about 80 or so students will arrive for the quantitative boot camps which kick off the year. The Honours students will get their first taste of graduate studies. And let me be honest: it is tough. Core modules like macroeconomics, microeconomics, econometrics and mathematical economics make the first semester a long and arduous affair. And then there are several electives to choose from, including international trade, development economics and economic history (where you’ll find me). The second semester has more choice but is no less rigorous: labour economics, industrial organization, public economics, environmental economics, the economics of education, the economics of technology, institutional economics and more.

These modules reflect the primary reason why I think studying Economics is worth the effort: it provides graduates with a set of analytical tools which allow them to make meaningful contributions in many spheres of society. For some, the immense inequality and high levels of unemployment that we witness in South Africa draw them to the field, eager to find solutions. Economists want to make the world a better place, and hope to use their rigorous methods to do so. Whether it is in education policy, or health policy, or trade and industrial policydevelopment policy, or competition policy, or monetary policy, economists at Stellenbosch apply the methods they learn to real-world evidence and make suggestions on how to improve society. That, I would argue, is real job satisfaction.

Some want to use the analytical tools of economics to, well, make money. They use the analytical tools of economics to start innovative companies like Custos Media Technologies, a company co-founded by a recent Masters graduate in Economics that hopes to reduce internet piracy. Others become business strategists of large corporations: Michael Jordaan, former CEO of First National Bank, and Jannie Mouton, founder and CEO of the PSG Group, have degrees in Economics from Stellenbosch.

Almost all of our graduate students find work immediately. Salaries for economists in South Africa and abroad compare very well with other professional occupations. This is why consultancies like KPMG, PwC and Bain are beginning to recruit economics graduates in larger numbers. In earlier years, our best students would have found a place within the public sector, most likely Treasury or the Reserve Bank. Now, although they’re still head-hunted by government, our best prefer the top dollar of the consultancies. In addition, there are many smaller economic consultancies that employ former students: Econex (based in Stellenbosch), Genesis Analytics (who sponsors an annual graduate prize) and NKC (now owned by Oxford Economics), to name a few.

I think graduate students from Stellenbosch are particularly attractive in the job market because of the exposure they get to quality graduate training. Graduate lecturers are generally young and almost have studied abroad for an extended period of time. As all classes are taught in English only, classrooms are also diverse. About half the students that enrol for Honours obtained their undergraduate degrees from Stellenbosch; the other half join from universities in other Southern African countries (approx. 20%) and from European countries like Germany.

Most Honours students continue into the Masters degree programme. Thanks to better funding, it is increasingly likely that the best Masters students, after perhaps spending a year abroad, return to begin a PhD. The skills they gain here make them exceptionally well qualified for research and academic jobs, in South Africa and internationally.

Alfred Marshall said that Economics is the study of people in the ordinary business of life. I cannot agree more. I also liked this summary: Studying economics will develop habits of careful thought, the application of mathematics, and practice in clear writing. Economists engage the world of current affairs. Studying economics includes learning to use statistics and to read critically. Economics graduates are interesting people both because of their skills and because they can explain why economic phenomena occur and how economic performance might improve.

So, if you are a final-year undergraduate undecided about what to do next year, why not make a great decision and enroll for an Honours at Stellenbosch? Or, if you’re currently doing an Honours somewhere else in South Africa, why not consider Stellenbosch for a Masters degree in 2016? To put it in language you might understand: the marginal returns of studying Economics at Stellenbosch, in monetary and non-monetary terms, are exceptional.

*If you want more info on Economics at Stellenbosch (including funding information), visit the Department’s website here. If you want more information on Economics in general, visit the AEA website.

**I am often asked how to best prepare yourself for an Honours degree in Economics. I would suggest that you, aside from doing third-year economics of course, also enroll for good courses in statistics and mathematics (at least up until the second-year level). And if you have more undergraduate time, do history and philosophy too. Here are some other random thoughts on what to study.