Editor’s note: This article and video were produced by the Journal of Supply Chain Management and are part of the collaboration between JSCM and SCMR. You can read more about the authors’ research by clicking on the link.
At first glance, the chaos created by COVID-19 seems unique and unexpected. In trying to make sense of what’s going on, many people have called the pandemic a ‘Black Swan,’ a term coined in 2007 by the essayist Nassim Taleb in his book, The Black Swan: The Impact of the Highly Improbable. Taleb, for one, has taken exception to the label, telling Bloomberg Television last spring that it’s not “a cliché for any bad thing that surprises us.
We agree. In fact, we argue that labelling it as such is not only highly confusing but unconducive to the situation. A black swan is a very rare and completely unpredictable event for which, by definition, it’s nearly impossible to prepare. Since the current pandemic looks like a duck (black swan), swims like a duck (black swan) and quacks like a duck (black swan), people conclude it must be a duck (black swan). People are right about the animal, but not about its colour: What we see here is a grey swan. You might ask: What on earth is a grey swan and what’s the use of talking about swans here?
While it is safe to say that most of us have not been locked down in our houses before, civilizations have seen similar pandemics before, and survived them. Forget the Middle Ages Plague. In 2003, we experienced the SARS outbreak followed by H1N1 in 2008. More recently, were outbreaks of Ebola in 2014, MERS in 2015, Zika in 2016 and Ebola again in 2018. The humanitarian world has seen pandemics grow from pretty much zero to one of the most critical challenges over the last decade. In our view, climate change, deforestation, uncontrolled urbanization and other factors have undoubtedly contribute to these outbreaks, and will make matters worse in the future.
For those reasons, rare is not the right word. Nor is unpredictable. Experts have been sounding the alarm for some time about the possibility for major outbreaks such as the current one. As recently as September 2019 the Global Preparedness Monitoring Board (GPMB) published a report specifying the threat of a pandemic of a respiratory disease. Gro Harlem Brundtland, ex-prime minister of Norway and ex-director-general of the World Health Organization who currently sits on the Global Preparedness Monitoring Board (GPMB), recently stated “unfortunately it is beyond doubt that what we experience was a pre-warned disaster.” *
That’s why we contend that this is not a black swan, but a bird of a different color. Grey swan events are still very unlikely, but have occurred before, […] and can in principle be foreseen […]. By appropriately naming this beast, we are better able to analyze and respond to it, for grey swans – as opposed to their black counterparts – are manageable and much more within our reach. In earlier research, we looked at a very specific kind of grey swan events, called business (supply chain) tsunamis.
These are rare events that can happen when management ignores a steady growth of operational issues too long, until the magnitude of the problems passes a tipping point and a tsunami of problems overwhelms the organization, causing disproportionate pains.
To better understand the governmental and managerial response to the current crisis, it’s helpful to draw a parallel with these industry disruptions, because the decision traps are remarkably similar. For instance, we also noticed them in research we conducted on the fight against Ebola.
The point of arguing about the colour of a swan is to say: We are not helpless and this can be explained. That’s why it’s useful to turn to our research on business tsunamis.
The following sequence of events (Figure 1) can be observed from the outside when a business tsunami “hits” a company and its supply chain:
Figure 1.
This sequence is valid for the Airbus A380 introduction disaster in 2006 or the CISCO 2001 internet bubble breakdown, or for any more recent spectacular business example (see Akkermans and Van Wassenhove 2018a, 2018b for an in-depth discussion). As illustrated in Figure 1, this process looks entirely different internally.
There, for a long time, management can be stuck in a phase of denial and sensemaking, as ‘this time is different’ and ‘it will all blow over’ are much easier responses, initially. More often than not, management accepts the existence of what seem ‘minor issues’ early on in the process. Only when it is glaringly clear that things will not blow over, can decision-making start.
By then, the problems have grown exponentially. This is certainly true when dealing with virus spreading like in the COVID-19 case where relatively small delays can have huge impact. This becomes clear when contrasting countries that acted relatively quickly with extensive testing and confinement to others that took longer to respond.
Can such tsunamis be prevented? The causal structure shown in Figure 2 suggests they can. Reacting in a timely fashion to a rare event with potential massive impact is basically a control loop, a negative feedback loop, with a set of delays. Bring down the delays and the response becomes timely.
With problems growing exponentially, a short enough time delay can be the difference between a huge problem (e.g. a pandemic) and a modest setback (e.g. a controlled local outbreak). Let’s walk through this feedback loop.
Figure 2 starts from an operational issue that keeps growing, leading to an accumulation of unresolved operational issues. These can be customers with quality problems or patients with COVID-19 symptoms. At a certain point, the issues become so big that a tipping point is passed and a shock wave, a tsunami, of problems hits decision-makers – such as the sudden exponential growth in COVID cases throughout Europe in the beginning of March.
Figure 2.
Up to that point, these decision-makers were not aware that this problem would not go away by itself, some even calling it “a nasty little flu.” This is because they typically missed the early warning signals, such as exponential growth rates in the number of issues. This is common in complex processes, where managers tend to apply the rules of noncomplex situations until this is no longer possible.
The typical stealth character of COVID-19 with its long incubation time and many hardly noticeable light cases, combined with little or no testing in many countries, made undetected exponential growth very easy, only to be followed by a tsunami of heavy cases over-stressing the health care system.
Figure 3.
What happens in response (see Figure 3) is a massive pressure hit rate (more and more cases), followed by a fast decision-making rate (‘sudden’ flash of countries going in lockdown), and a gradual decline after that of the stock of unresolved issues (‘flattening of the curve’). The similarities between these supply chain tsunamis in industry and the COVID-19 experience in many countries are striking. The underlying phenomena are indeed very similar.
Several useful lessons for decision-makers can be distilled from our research on supply chain tsunamis. Not just for coping with the present crisis, but also to come out of it and “build back better” for the future.
Sufficient information and swift decision-making are key. Not only is it important to collect the right data, it is crucial to be able to judge on the basis of this input and to act accordingly in time. Good surveillance systems for early detection of COVID-19 and proper timely confinement action could have reduced the pandemic to a local flare up without much impact. The cost of a good detection system is probably as little as one thousandth of the human and economic cost of the current pandemic. A case of being pennywise but pound foolish?
All of this is confounded by lack of good governance, lack of collaboration and timely information exchange. Pennywise, pound foolish is what people understand during the current COVID-19 crisis, but perhaps we should talk again a year from now when everything is seemingly hunky dory again. It is becoming painfully obvious that every now and then we will be confronted with the consequences of forgetting the lessons from the past, which perhaps our predecessors forgot.
This should be our wake-up call to start working towards a better future, to heed the call for sustainable development – “development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”
We need to come up with strategies to rebuild. Strategies that “incorporate the UN Sustainable Development Goals, i.e. focus on innovation that creates growth and prosperity, while preserving a healthy and safe place to live, leaving no one behind, as the UNSDGs state.”
We should learn from supply chain tsunami and related research on decision traps. It does not help to bury our heads in the sand, because health tsunamis (pandemics) will strike again and at a much higher frequency than before. The COVID-19 story resembles the famous novel of Gabriel Maria Marquez: “Chronicle of a Death Foretold”. Calling it a black swan essentially says “there is nothing I could have done to prevent this…”.
* “While disease has always been part of the human experience, a combination of global trends, including insecurity and extreme weather, has heightened the risk. Disease thrives in disorder and has taken advantage—outbreaks have been on the rise for the past several decades and the spectre of a global health emergency looms large. If it is true to say “what’s past is prologue”, then there is a very real threat of a rapidly moving, highly lethal pandemic of a respiratory pathogen killing 50 to 80 million people and wiping out nearly 5% of the world’s economy. A global pandemic on that scale would be catastrophic, creating widespread havoc, instability and insecurity. The world is not prepared.” Foreword, p6 of GPDM annual report 2019.
About the authors
Henk A. Akkermans, Ph.D., is the chair in supply chain management at the Tilburg school of economics and management, Tilburg University. Luk Van Wassenhove, Ph.D. is emeritus professor of technology and operations management and the Henry Ford Chaired Professor of Manufacturing, Emeritus at INSEAD. They can be reached at [email protected] and [email protected].
The authors acknowledge the help of Gina Fialka, Research Associate at INSEAD, in the writing of this article.