Johan Fourie's blog

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One policy to rule them all

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The holy grail for development economists is to identify an affordable policy intervention that will help the poorest escape poverty. We know that living a longer and better life is correlated with many things: higher income from having a job, living in a house with clean water and sanitation, and access to better schools and health facilities, to name a few. But the trouble comes when we try to write policy to improve these things: which investment, given limited resources and political constraints, will most benefit children from poor households? And why?

A new paper* published in the American Economic Review last month by a team of economists and psychologists offers an answer. It uses a longitudinal unconditional cash transfer programme – the Great Smoky Mountains Study in North Carolina – to examine how a cash boost for parents affected children’s outcomes. Children from 11 counties were interviewed annually from age 9 until the age of 16. Their parents were interviewed at the same time. One subsection of these children are American Indians. These American Indian families began to receive, five years after the first survey, direct cash transfers from the Eastern Band of Cherokee Indians tribal government as a result of a new casino that came into operation. The cash transfers were provided to all adult citizens of the tribe, regardless of their employment conditions, marital status, or the presence of young children. This is basically equivalent to a universal Basic Income Grant, a policy that is gaining popularity in academic circles.

Because the surveys were initially undertaken for the purpose of collecting information about behavioural and mental health, the authors have a lot of information about the children’s emotional and behavioural well-being at their disposal. Most importantly, the surveys began before the introduction of the unconditional cash transfer, so they can compare the mental health conditions of children in households who receive the transfer to those in households who never received it. This ‘natural experiment’ is the closest thing economists get to a laboratory experiment.

The results are remarkable. They show that the increase in unconditional household income improves child personality traits, emotional well-being and behavioural health. Because of the unique nature of their data, they can demonstrate that these improvements are for the same child using the same measures over time. The formation of positive personality traits, like conscientiousness (individuals who do your duties diligently and thoroughly) and agreeableness (individuals who are kind, sympathetic and cooperative), is ‘crucial in determining long-term socioeconomic standing and may also have strong effects on long-term health, educational attainment, and economic outcomes’. We know from earlier research that mental health conditions, such as attention deficit disorder, are more likely to affect poorer children. The authors concur: ‘We find that the children that start out with the most severe personality or behavioral deficits are the ones who exhibit the greatest improvements.’ A universal cash injection, like a Basic Income Grant, is likely to have the largest impact on children from the poorest households, improving personality traits and health outcomes even during their teenage years.

Such improvements in personality will have large repercussions in adulthood. A large literature now shows that such traits are strong predictors of finding a job, living in a good neighbourhood and living a longer and healthier life.

Most remarkably, because the surveys also included questions about parental health, the authors could discuss potential mechanisms through which additional household income affects child personality traits. They find that the unconditional cash transfers resulted in ‘an improvement in parental mental health, the relationship between parents, and the relationship between the parents and children in the treated households’. A Basic Income Grant may improve long-run child outcomes via the improvement in parental behaviors, stress-reduction, and improvements in decision making in the household.

A Big Income Grant is an expensive policy. A back of the envelope calculation reveals that, with 56 million South Africans, a Basic Income Grant of R758 per month – what is classified as the lower-bound poverty line by StatsSA – will require R509.4 billion annually. This is a lot of money, but not impossible to find. We already spend R193.4 million on social protection, and another R66 million on social security. We pay R180 million on debt servicing, which can be drastically reduced if we sell government-owned assets and repay our debt. A Basic Income Grant will also help reduce the reliance on free government services, such as fee-free schools, and increase VAT income as consumption increases.

A Basic Income Grant not only eliminates extreme poverty with the stroke of a pen, but as the Great Smoky Mountains Study show, it can drastically improve the emotional well-being and behavioural health of both children and parents in our poorest communities, with massive implications for their futures and that of South Africa. If we are serious about addressing the stark inequalities in our country, inequalities that ultimately help explain societal challenges like hopelessness, desperation, crime, violence, and even populism, then a Basic Income Grant is a policy we can no longer afford to ignore.

*Akee, Randall, William Copeland, E. Jane Costello, and Emilia Simeonova. 2018. “How Does Household Income Affect Child Personality Traits and Behaviors?” American Economic Review108 (3): 775-827.

**An edited version of this article originally appeared in the 10 May edition of finweek.


Written by Johan Fourie

June 19, 2018 at 08:15

The Autshumao and Krotoa International Airport of Cape Town: My letter to ACSA

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Renaming of Cape Town International Airport: A proposal

I would hereby like to submit a nomination for Cape Town International Airport’s new name.

Cape Town is an international, cosmopolitan city, a ‘melting pot of cultures’. Many individuals from Cape Town’s rich history deserve to be celebrated in the renaming of Cape Town International Airport. Yet I often find that little attention is given, in place names, traditions, and heritage symbols, to the indigenous inhabitants of the region before the arrival of European settlers in the mid-seventeenth century.

I therefore feel it is appropriate that Cape Town’s international airport should celebrate the people who had lived in the region for several centuries before European arrival, who had contributed to the economic and social development of the Cape, often in subordinate positions of indentured labour, and whose descendants still reside here, now mixed with more recent immigrants from Europe, Asia and Africa, a city that is, indeed, a ‘melting pot of cultures’.

My proposal is therefore to rename Cape Town International Airport to the Autshumao and Krotoa International Airport of Cape Town.

Autshumao was the first inhabitant of South Africa to travel abroad. In 1630, Autshumao was picked up by a British ship – called ‘King Harry’ on board – and travelled to the East. There he learned Dutch and English, and when he returned to the Cape, he would become postmaster on Robben Island. He would also act as the first translator and trader when the Dutch East India Company settlers established a refreshment station in 1652. Autshumao later fell into disfavour as trading partner, and was banned to Robben Island. Nelson Mandela would later call him the ‘first freedom fighter’.

His niece, Krotoa, was a translator in the household of Jan van Riebeeck, the first VOC commander of the Cape. She would marry a Danish surgeon and her progeny would include several South Africans of note, including Paul Kruger, Jan Smuts and FW de Klerk.

Naming Cape Town International Airport the Autshumao and Krotoa International Airport of Cape Town would signal recognition of the first inhabitants of Cape Town, and the ‘melting pot of cultures’ that Cape Town has become.

Kind regards,

Johan Fourie

Land expropriation: learning from the Chinese

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The complexity of the debate about land expropriation without compensation can ultimately be summarized into two questions: Should land be expropriated without compensation? And, if so, who should own the expropriated land? While much media attention has focused on the first, with the focus often on how such a policy will scare off foreign investment, it is the answer to the second, ultimately, that will determine the success of any attempt at redress and wealth creation.

The two proponents of a policy of land expropriation without compensation in South Africa – the ANC and the EFF – stand on very different sides with regards to answering the second question: the ANC has made it clear that ownership should be in private hands, while the EFF has forcefully and repeatedly made the case that the state should be the custodian of all land. Their policy would see the state expropriate all private farm land and lease the land ‘equally’ to the people of South Africa. Dali Mpofu, National Chairperson of the EFF and a respected advocate, has defended this stance by referring to China in a 2017 tweet: ‘Chinese land is owned … by the state and it has registered the highest consistent economic growth in the world!’

Mpofu’s example is an interesting one, and worth exploring. Indeed, Chinese economic growth over the last four decades has been a historically unprecedented 8% per year. But Mpofu would do well to note that this growth was not a consequence of agriculture. Between 1990 and 2016, the share of agriculture in GDP has fallen dramatically from 26.5% to 8.5%. This was associated with massive urbanization; in 2016, 57.4% of the total population lived in urban areas, a dramatic increase from 26% in 1990. Far fewer people now live off the land, and those that have moved to the (often new) cities, are remarkably better off.

This is because land is not the valuable commodity it once was in the nineteenth and twentieth centuries. As a way to empower people, land is probably the least useful asset nowadays, because it requires significant investment in physical and human capital to make it productive. Even then, the most valuable assets today are intangible – skills, intellectual property rights, data. In the twentieth century, agriculture could only thrive with significant state intervention in the form of marketing councils, favourable tariffs and other measures, measures that came at the cost of the South African consumer. In the 21st century economy, living off the land – without significant capital investment – will limit the ability of those that most need access to good education and health services and opportunities for social mobility that are found in cities.

This is even more true if the expropriated land is owned by the state. Let us return to Mpofu’s country of choice: China. Between 1955 and 1957, 96% of China’s 550 million peasants were dispossessed of their private property rights. This was the largest movement from private to communal property rights in history. As Shuo Chen and Xiaohuan Lan show in a 2017 paper published in the American Economic Journal: Applied Economics, the results of this process of land dispossession was devastating for the peasants, and the Chinese economy. The authors use data of 1600 counties that launched the movement in different years, and find that in the year of the dispossession, the number of cattle declined by 12 to 15%. In total, this was a loss of almost 10 million head of cattle. Why? Because people started killing their own animals to keep the meat and hides as soon as they released that they will lose the property rights to the use of those animals, and they did not trust the state to be able to safeguard what used to be theirs. This loss also affected grain output, which fell by 7%. We now know that Mao was not discouraged by this initial production shock. No, he doubled down. This initial process of land dispossession set the stage for the Great Leap Forward movement of 1958, which led to the worst famine in human history that killed an estimated 30 million people.

China’s process of collectivization should be the example that Mpofu and the EFF leadership study. If they want more evidence of how collectivization collapses an economy, they need look no further than Tanzania’s Ujamaa and Operation Vijiji, a much understudied but enlightening experience. Or ask our Zimbabwean neighbours about their land reform programme. As Tawanda Chingozha, a PhD student in the Department of Economics at Stellenbosch University, shows using sophisticated satellite imaging technology, Zimbabwe’s land reform programme caused a significant reduction in both the quantity and quality of crops harvested, and not only on formerly white commercial farms. The empirical evidence against state-owned land ownership is unequivocal.

Land is an emotive issue because the memories of dispossession, forced removals, and apartheid segregation remain vivid for many. Others are simply unhappy with the slow process of economic progress in the last decade, and see in land a source of safety and security.

But if land is expropriated and private property removed, the hope of economic progress will be nothing more than a mirage. We have smart people in South Africa. Surely we can find a way of redress that actually empowers people – and won’t replicate our disastrous past policies that subjugated the poorest to a life of poverty on the periphery of progress?

*An edited version of this article originally appeared in the 26 April edition of finweek.

The stories we do not tell

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One of my favourite scenes in Love, Actually is right at the beginning of the movie. The setting is an airport arrivals terminal. As travelers arrive through the gates, they are welcomed by family and friends, smiling, laughing, hugging and kissing. Whenever I have to pick someone up at the international terminal, I do my best to arrive early, and to witness the joy of family and friend reunions.

I would contest that there is another setting where you’re guaranteed to be uplifted. Graduation ceremonies. I was fortunate to attend one of these at the end of March where hundreds of students received their degrees, with thousands of friends and family watching on. Each applause and ululation tells a story, stories often coupled with hardship, sacrifice and perseverance but also with hope, faith and, ultimately, success. There are few things better to see than a father or mother, proud and captivated as their son or daughter walks across the stage, holding back the tears.

Several of my own Economics students graduated too, each with their own stories. Thokozire Gausi graduated with an Honours degree. She is from Malawi and part of a network of students that self-finance their studies in South Africa, often with very little institutional support. Masters-degree graduate Omphile Ramela, who grew up in Soweto, wrote his dissertation while playing professional cricket for the Cape Cobras and, now, the Highveld Lions, and while balancing the demands of a young family. Abel Gwaindepi received his PhD in Economics. He grew up in Zimbabwe, where his father worked in the sugarcane plantations of Anglo-American. Abel has 16 siblings, many of whom he had to support with his meagre scholarships through an undergrad at Fort Hare, a postgraduate at Rhodes and, ultimately, a PhD at Stellenbosch. It is difficult to imagine what that moment of graduation must have felt like for Abel and the Gwaindepi family.

At the same ceremony, both Patrice Motsepe and Jannie Mouton received honorary doctorates, and had the chance to say a few short words. Motsepe noted South Africa’s amazing people, and our duty to ensure that each has the opportunity to live a life of dignity and prosperity. We underestimate our own abilities, Motsepe said, to make a success of South Africa. Mouton highlighted the wealth of opportunities in the country. Focus, he said, on the opportunities instead of being an expert on the problems. ‘Build a business, employ people, pay taxes – contribute.’

Negativity pervades our society, and can be incredibly debilitating. A few minutes on Twitter and you’re bound to find discussions that turn into slurs and slanders which will only end in ignorance and intolerance. But – and this I repeat to myself and my students frequently – Twitter is not the real world. Despite all the negativity that surrounds us, there is one undeniable truth: there has never been a better time to be human than in 2018.

The story we do not tell often enough – and one that still surprises each new cohort of students I teach – is that life is getting better. Yes, we have tremendous challenges in South Africa, in Africa and globally, but we are making good progress to tackling these head-on. Six of the ten fastest growing economies in 2018 will be in Africa. But it is not only incomes that are improving. Steven Pinker, in the first few chapters of his new book, Enlightenment Now, provides a wonderful summary of the trends in health, happiness, and living standards, as well as inequality, the environment, safety and democracy. In each case, the evidence suggests that we live in a much better world than our parents and grandparents.

This good story did not just happen for no reason. It is humankind’s ability to use the resources of nature and transform them into food, clothing and shelter, through ever-increasing understanding of science, our complex technologies and sophisticated institutions, that have allowed us to build a more prosperous world. I really like the way Pinker explains this:

Poverty needs no explanation. In a world governed by entropy and evolution, it is the default state of humankind. Matter does not arrange itself into shelter or clothing, and living things do everything they can to avoid becoming our food. As Adam Smith pointed out, what needs to be explained is wealth. Yet even today, when few people believe that accidents or diseases have perpetrators, discussions of poverty consist mostly of arguments about whom to blame for it.

That our world is getting better should not mean that we can get complacent. As we’ve seen in several countries around the world, places like Syria, Venezuela and Zimbabwe, when things fall apart, living standards quickly revert back to poverty and chaos. As long as we understand that investment in better knowledge about how the world works lies at the heart of our story – in other words, investing in innovation, science and technology – such an outcome is unlikely for South Africa. The worrying thing about our recent budget is that the allocation towards this category will grow at less than the inflation rate. Our politicians seem to not understand that our wealth is dependent not on connections, mineral resources or land. Instead, it is the result of innovation-led improvements in productivity that explains the huge progress of the last two centuries.

Motsepe and Mouton are both correct: we have amazing people and amazing opportunities. But we will only be able to tell a good story if we invest in those amazing people – like Thoko, Omphile and Abel – to use their knowledge and skills to take advantage of those opportunities.

*An edited version of this article originally appeared in the 12 April edition of finweek.

The unintended consequences of good intentions

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We all hope to live long, healthy lives. And we want that for other people too. So when we have medical breakthroughs that allow us to alleviate the suffering of others, almost all of us would agree that it should be rolled out to those needing it most.

Opioid abuse kills 42000 Americans annually. Opioids are a class of drugs usually prescribed to treat pain, but many patients develop addictions that result in the illegal use of prescription drugs or even cheaper alternatives, like herion. Opioid abuse has increased steadily over the last decade to now constitute more than two-thirds of all drug overdose deaths. How to stop and reverse this rising trend has been the subject of debate amongst public health officials and policymakers for some time.

One option, preferred by most US health experts, is Naloxone. Naloxone is a drug that can reverse the effects of an opioid overdose if administered quickly. In short: it can save many lives if it is easily accessible. With this knowledge, many US states began to pass laws that facilitated the widespread distribution and use of Naloxone. Surely this policy would save thousands of American lives?

Unfortunately and surprisingly, it had the opposite effect. This is the astounding conclusions of a new study by Jennifer Doleac of the University of Virginia and Anita Mukherjee of the University of Wisconsin-Madison. The two economists find that broadening Naloxone access had ‘no reduction in opioid-related mortality’.  Why? Because the availability of Naloxone encouraged riskier behaviour; access to Naloxone increased the use and abuse of opioids. Doleac and Mukherjee show, for example, that where Naloxone became available, it was followed by a clear increase in opioid-related emergency room visits and more opioid-related theft. In some places, like the Midwest, there was even an increase in opioid-related deaths, as abuse increased because people were comforted by the knowledge that there is a way out. A policy with fundamentally good intentions had perverse outcomes.

This is a classic example of the dilemma that policymakers face on a daily basis. Good intentions do not equate to good policy. Differently put, the road to hell is paved with good intentions. What is needed is an understanding that humans react to incentives, and that if the incentives change, so will their behaviour.

Sport is a great example of how policies can have undesired consequences. Increase the points awarded for a try to encourage more running rugby? Maybe it works, but it is more likely that it will encourage foul play because a penalty is now a relatively less expensive mistake. Design cricket helmets to make batsmen safe from bouncers? Possibly, but it is equally likely that fewer batsmen now learn to play the bouncer well, and are thus hit on the head more often (obviously with less severe consequences). Give three log points for a win in a soccer championship instead of two to encourage more attacking play? Expect more defensive home games and draws as teams want to avoid ‘losing three points at home’. These examples may be somewhat facetious, but they show just how difficult it is to regulate human behaviour.

One policy that is likely to have serious ramifications for South Africans is the proposed Liquor Amendment Bill, which will increase the minimum drinking age from 18 to 21 years. The goal, ostensibly, is to reduce the number of alcohol-related deaths of teenagers, both from overconsumption and from the associated violence and car accidents. There is no doubt of the good intentions here. Alcohol abuse can have deadly consequences. Limiting the drinking age to 21 seems like a rational way to reduce consumption amongst a group of young people that is most at risk. What could go wrong?

The answer is: we don’t really know. Would young adults be happy teetotallers for three years, or would they find alternative means of enjoying the products of Bacchus? Are the alternatives – hiding consumption from adult supervision, or consuming unregulated drinks bought on the black market – not potentially worse?

Perhaps we can find examples elsewhere. Empirical evidence in the US seems to suggest that increasing the minimum drinking age reduced car accidents by around five percent. That would be great, of course, although those results rely on strict enforcement capabilities and supporting institutions. Would violence, particularly against woman, cease? Perhaps it would, but the new bill might also shift drinking away from bars and public places and into the home, with even worse outcomes.

Any policy, regardless of its intentions, has consequences. Some are obvious to see, but often our good intentions have undesired or even perverse outcomes that nullify or even contradict the initial aims. We can avoid the worst of these by carefully considering the alternatives, through modelling behaviour and empirical testing (of similar policy experiments). But often the bad news is that, despite our best intentions, humans are best left to their own devices.

*An edited version of this article originally first appeared in the 29 March edition of finweek

Written by Johan Fourie

May 7, 2018 at 10:00

A moment to remake South Africa

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At the dawn of independence, it fell on the first generation of African leaders to choose a new economic paradigm to deliver economic freedom to their people. In the Cold War between capitalism and communism, these African leaders almost unilaterally preferred a third option – ‘African socialism’ – a potpourri of policies built on the ethic of egalitarianism grounded in African history and culture.

At the second annual LEAP Lecture at Stellenbosch University in October 2017, Emmanuel Akyeampong, professor of African history at Harvard University, returned to the topic of ‘African socialism’ following independence, and its consequences for the continent. In countries as diverse as Ghana, Tanzania, Senegal and Guinea, he notes, the new policies were, ultimately, attempts to industrialise, to break away from the agriculture-based systems of the colonial economies.

In Kwame Nkrumah’s Ghana, for example, plans were drawn up for massive infrastructure investments. Sadly, many of these projects never got off the ground, or were only finished much later. In one project, for example, Nkrumah convinced the Russians to build a railway from Kumasi to Ouagadougou, the capital of Burkino Faso, but the railway was never completed.

The most extreme version of ‘African socialism’ was Julius Nyerere’s umajaa (villagization) campaign in Tanzania in 1967. This essentially meant the collectivization of all forms of productive capacity, notably in agriculture; Tanzanians, Nyerere believed, must learn to free themselves from dependence on European powers by becoming self-reliant.

Nyerere’s bold vision, and those of his contemporaries, failed miserably. Says Akyeampong: “The 1980s put paid to the concept and the vision, as steep economic decline resulted in what has been called Africa’s ‘lost decade’; the most notable architect of African socialism, Nyerere, conceded that his attempt at ujamaa had failed and stepped down from power in 1985; and the collapse of the Soviet Union in 1989 marked the triumph and ascendancy of capitalism.”

But Akyeampong is less interested in the reasons for their failures than in the boldness of their visions.  “It is the vision of bold and broad transformative change that I find admirable and worthy of emulation, and the desire to lift entire populations out of poverty and give them a decent life.” This optimism and boldness was not limited to the African leaders themselves; even the World Bank, soon after independence, remarked: ‘For most of Africa, the economic future before the end of the century can be bright’.

As I listened to Cyril Ramaphosa deliver his first State of the Nation address, I was reminded of that special moment in time when monumental change seemed possible. The general mood seems to have lifted after Jacob Zuma’s departure. Is this another moment when the trajectory of history seems to shift gear?

We should, of course, learn from history. Utopian visions of the future can easily become a justification for social engineering. While a powerful state can quickly transform society, it can do so at the cost of freedom. This is not the route I have in mind. Instead, this opportune moment can be used to redefine the social contract, to implement a nuanced set of social democratic policies with two explicit aims: economic security and economic freedom. In short, we want to live in a just and prosperous society.

How do we achieve that? Security requires that people have a basic standard of living. One policy proposal that has attracted a lot of interest is the basic income grant, a small monthly grant (of say R752, the lower-bound poverty line) to every South Africa, regardless of income. This would replace the child support grant. Every person with an ID document will be required to open a bank account (perhaps with a new state deposit bank), which will be linked to their SARS account. To partially fund this, VAT will increase. A tax on consumption means we incentivise savings and investment, the heart of creating economic prosperity.

There are many such policy options. State ownership of some assets, like aeroplanes and television stations, make little sense. These can be sold to pay off national debt and lower personal income taxes. Government can also save by reducing the number and size of departments and keeping the increases in the public wage bill to less than inflation.

As South African cities have some of the longest transit times in the world, infrastructure investment in urban areas – notably in public transport and housing – needs urgent attention. Water and electricity can benefit from innovations like desalination and solar panels. Broadband access can be expanded through incentive programmes.

A prosperous society requires an educated populace and work for them. Investing in early childhood development is key to eradicate large discrepancies that already exist when kids arrive at school. Incorporating the private sector in secondary and tertiary education, perhaps through a voucher system, is one way to not only improve the quantity of seats in class, but also provide opportunities for entrepreneurs at the local level. We should also welcome immigrants with skills with open arms; they not only bring much-needed expertise, but they often build new businesses that create jobs and improve living standards.

Cyril Ramaphosa has a window of opportunity in the first few months of his tenure. He can dare to be bold, and should do so. Says Akyeampong: “We need the bold and transformative vision of the likes of Nyerere and Nkrumah to ensure that come 2050 we do not find ourselves in the same predicament as on the eve of independence, when our new leaders, coming out of decades of repressive colonial economic policies, were faced with what appeared to be insurmountable challenges.” What will economic historians, fifty years from now, say about Ramaphosa’s moment to remake South Africa?

*An edited version of this article originally first appeared in the 15 March edition of finweek

Do management consultants really add value?

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That good managers matter for corporate success, should be a surprise to no-one. Early economists like Alfred Marshall, back in the nineteenth century, already noted the importance of good management practices to drive productivity. But because managers and the way they behave is such a difficult thing to quantify, economists have struggled to measure how important good management practices are in explaining firm success.

In 2008, five leading economists from Stanford University and the World Bank, tackled this difficult question. They wanted to know whether investing in good management practices improve productivity and profits, and so, between 2008 and 2010, they conducted a large field experiment in India. They approached large, multi-plant Indian textile firms and divided them in two groups. For one group – the treatment group – they gave five months of extensive management consulting through a large international consulting firm. This included a month of diagnosis, where the consulting firm would find opportunities for improvement, and four months of intensive support for the implementation of these strategies. In contrast, the other group – the control group – received only one month of diagnostic consulting, but no intensive follow-up.

At the end of the study, in 2011, they tested the performance of the firms in the two groups. The results, published in the Quarterly Journal of Economics in 2013, were quite remarkable. Even with just four months of follow-up, those in the treatment group saw an increase of 11% in productivity, and an increase in annual profitability of about $230 000. Interestingly, firms also spread these management improvements from their treatment plants to other plants they owned, creating positive spillovers that resulted in returns that far outstripped the initial investment.

What made the difference? The authors suggest two reasons for the improvements: First, owners delegated greater decision making power over hiring, investment and pay to their plant managers. “This happened in large part because the improved collection and dissemination of information that was part of the change process enables owners to monitor their plant managers better.” Second, the extensive data collection necessary for quality control, for example, led to a rapid increase in computer use. Better information management resulted in better performance.

The concern with the study, though, was that it failed to measure the persistence in performance. Did the differences between the treatment and the control group wither away as soon as the management consultants left, or did they persist for a month, a year, or even longer? To answer this question, almost the same team of authors returned to India in 2017 to measure the performance of the firms eight years after the initial intervention. Their results appeared in an NBER Working Paper last month.

It seems that management practices do persist. Despite the fact that several firms (in both the treatment and control group) dropped some of the management practices that were initially proposed by the consultants, the difference between the two groups were still large – worker productivity is 35% higher in the treatment group compared to the control group. The spillover effects, in particular, were still there: in fact, in most cases, the plants that did not receive treatment but were part of the same firm, were indistinguishable from the plants that did receive management consulting services. As the authors note: While “few management practices had demonstrably spread across the firms in the study, many had spread within firms, from the experimental plants to the non-experimental plants, suggesting limited spillovers between firms but large spillovers within firms”.

The authors were also able to collect information on the reasons certain management practices were dropped over the period of 8 years. Three reasons were frequently mentioned: the new management practices faded when the plant manager left the firm, when the directors, notably the CEO and CFO, were too busy, and when the practice was not commonly used in many other firms. “The first two reasons highlight the importance of key employees within the firm for driving management practices, while the latter emphasizes the importance of beliefs.”

There were other surprising consequences of intervention too. Not only was worker productivity higher in the treatment group, but treated firms continued to use consulting services in the years following the initial intervention, not only improving their operational management practices, but also their marketing practices.

Management consultants often get a bad rep, but random control trials like these – experiments that are costly and time-consuming – clearly demonstrate the advantages, in profits and productivity, of investing in good management practices. Successful firms thrive because of good managers. The key is to hang on to them, empower them with the ability to make decisions, and free up their time.

*This article originally appeared in the 1 March edition of finweek.

Written by Johan Fourie

April 6, 2018 at 15:21