Vive la révolution industrielle!

Education — whether through formal instruction in schools, or through on-the-job training — is essential in the development of skills. And skills matter for workers’ productive capacity: that is, how we apply ourselves in our working lives. While there is a considerable body of research on the role of education in raising labour quality and output, there is much that remains unknown — or at least empirically unverified. One of the big question marks relates to the effects of different types of skills and education.

In a recently published paper, Diebolt et al. (2021) offer a fresh perspective on how industrialisation influenced the demand for skills. They consider specific types of education in nineteenth century France, and show a relationship between the rise of the steam engine and the accumulation of practical skills with technical applications.

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Higher education in the Middle Ages

The first universities were founded in Europe in the eleventh and twelfth centuries. In Scandinavia, the oldest extant universities can be found in Uppsala and Copenhagen — both universities opened in the late fifteenth century. My own institution, Lund University, was established in 1666 — following an earlier medieval academy in Lund, which was shuttered during the Reformation. (The Academy of Lund was connected to a Franciscan monastery.)

On one level, modern-day universities are a world apart from their medieval forebears. The numbers of the students and academics, and the range of courses and research on offer, are an order of magnitude greater today than in past centuries. But on another level, the mission of these institutions is fundamentally unchanged. The specialised skills communicated through higher education, as well as the knowledge and productive applications generated through research endeavours, are essential to understanding economic growth and humanity’s progress. Is it possible to trace the effects of the earliest universities on development?

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Leaving their mark

Københavns Universitet

This week, I get to offer a sneak peak on my work as a researcher. My colleagues and I have put out a working paper (PDF link), describing our early efforts to produce a detailed measure of educational acquisition in Denmark from the 19th century onwards. Our longer-term ambition is to use this (and other) data to explore the role of education — and in particular, changes in the types of higher education — in Denmark’s industrialisation.

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In instruments we trust

A central question in economics is almost always, “how does X affect Y?”. We look not merely for relationships between variables (as X increases, Y falls), but seek causal explanations (the fall in Y is a result of the increase in X). Unfortunately for this kind of econometric analysis, the world is complex. We seldom can control the settings we observe; many variables can be changing simultaneously. Proving causality in economics typically requires techniques that can isolate the effect of the specific relationship of interest.

An example to illustrate why this might be so: it is common knowledge that, on average, those who study at university earn higher incomes than those who left school at the first possible opportunity. So, education causes higher wages for those with education? Perhaps. But it is also possible — likely even — that if all universities closed tomorrow, and everyone left school at the same age, that (again, on average) those who would have gone to university might still have better career prospects and earn a higher income than those who would never have studied further if given the chance. That is, there is some other factor at play beyond education itself, which influences 1) the likelihood of someone pursuing education and 2) later-life employment outcomes.

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School’s out

Across much of the world, one of the initial responses to the covid-19 pandemic was to close schools. WIth the virus still circulating, many jurisdictions continue to grapple with the question of when and how to resume physical classes. Much of the political debate is focused on the health risks. Many are understandably concerned about how safe it is to send students and teachers back into classrooms. But history also points to the risks associated with maintaining shutdowns. Specifically, disrupting children’s schooling can have persistent effects on their overall level of schooling.

Can we evaluate the consequences of mandated school closures? Plainly, one can only guess at the long-term effects of a coronavirus-induced shutdown: in the absence of time travel, the lifetime outcomes of today’s kids is unknowable. But maybe past examples from other health crises can help to gauge the direction and magnitude of effects?

In new research, Meyers and Thomasson (2020) analyse one historical case involving widespread school closures: the 1916 polio epidemic in the US. Thanks to comprehensive immunisation, polio is today eradicated across the developed world. But no vaccine (or effective treatment) was available in the early 20th century. The 1916 epidemic was significant, with more than 23,000 reported cases distributed across just about every state in the US.

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