Pandemics & Society Seminar, 7 November: Projecting the long-term effects of the COVID-19 pandemic on U.S. population structure

For the sixth Pandemics & Society Seminar of our Fall 2024 series we are pleased to welcome Andrea Tilstra (University of Oxford). The seminar will be held on Thursday, 7 November at the normal time (1600 CEST). More information about our speaker and the presentation is below. You can sign up for email notifications about the seminar series, including the Zoom details, here.

Abstract

The immediate, direct effects of the COVID-19 pandemic on the United States population are substantial. Millions of people were affected by the pandemic: many died, others did not give birth, and still others could not migrate. Research that has examined these individual phenomena is important, but fragmented. The disruption of mortality, fertility, and migration jointly affected U.S. population counts and, consequently, future population structure. We use data from the United Nations World Population Prospects and the cohort component projection method to isolate the effect of the pandemic on U.S. population estimates until 2060. If the pandemic had not occurred, we project that the population of the U.S. would have 2.1 million (0.63%) more people in 2025, and 1.7 million (0.44%) more people in 2060. Pandemic-induced migration changes are projected to have a larger long-term effect on future population size than mortality, despite comparable short-term effects.

About the Speaker

Andrea Tilstra is a Marie Skłodowska-Curie Research Fellow at the University of Oxford, at the Leverhulme Centre for Demographic Science. She is based in the Departments of Population Health and Sociology and at Nuffield College. Her work spans quantitative medical sociology and social demography, and seeks to better understand the underlying social determinants of population health.

Op ed by our visiting researcher Adlofo Garcia-Sastre: The next big pandemic? Avian flu takes a worrying step closer to humans

Adolfo Garcia-Sastre will give this years PANSOC guest lecture at the Norwegian Academy of Science & Letters on Wednesday November 6th titled “Influenza virus: 1918-2024” (read more here: PANSOC Guest lecture: – Centre for Research on Pandemics & Society (PANSOC). As part of Garcia-Sastre’s visit in Oslo and as a “teaser” for his talk, he as also written an opinon piece that you can read here: The next big pandemic? Avian flu takes a worrying step closer to humans

31 October Seminar: COVID-19 is (Probably) Not an Exogenous Shock or Valid Instrument

For the fifth Pandemics & Society Seminar of our Fall 2024 series we are pleased to welcome Jeff Clement (Augsburg University). The seminar will be held on Thursday, 31 October at the normal time (1600 CEST). More information about our speaker and the presentation is below. For our attendees outside of Europe, please note that Central European Summer Time has ended, you can check the seminar time in your time zone here. You can sign up for email notifications about the seminar series, including the Zoom details, here.

Abstract

Working Paper available here

Empirical investigations of many information systems phenomena are complicated by endogeneity. The Covid-19 pandemic prompted a wide range of policy and societal changes that seem to present a natural experiment. Researchers have attempted to use these changes, such as mandated closures of non-essential businesses, as exogenous shocks or instrumental variables in causal inference, with the goal of evaluating a theory or phenomenon not related to the pandemic. However, the rationale that the Covid-19 response prompted changes (such as business and school closures) that were decided by an agent “outside the unit of analysis” is not sufficient to meet the criteria for exogeneity. We concisely describe and demonstrate via simulation that the wide-ranging impacts of Covid-19—which were driven by politics, personality, and socioeconomics, and implemented in bundles—violate the parallel trends assumption for difference-in-differences analyses and the exclusion restriction for instrumental variable analyses. Our hope is that this analysis helps IS researchers avoid such problems moving forward.

About the Speaker

Jeff Clement is an Assistant Professor of Information Systems at the School of Business and Economics at Augsburg University in Minneapolis, Minnesota, USA. His research explores topics in healthcare (especially related to emergency/pre-hospital care and pharmaceuticals), AI-augmented decisions, and the intersection of those topics. He received his PhD from the University of Minnesota.

New paper: Drivers and barriers of seasonal vaccination uptake

Drivers and barriers of seasonal influenza vaccination 2015/16 & 2019/20 to 2022/23 – a survey on why most Norwegians don’t get the flu vaccine | BMC Public Health (springer.com)

Background:

This study aimed to explore the reasons adults in the general population, influenza risk groups (RGs) and health care workers (HCWs) in Norway give for their vaccination choices and whether these reasons vary between groups or over time in order to further improve influenza vaccination coverage.

Methods:

Respondents of a nationally representative telephone survey conducted by Statistics Norway were asked “What was the most important reason why you did/did not get vaccinated?”. The question on influenza non-vaccination was included in 2016 and in 2020 to 2023 and the question on influenza vaccination in 2021 to 2023.

Results:

The study included 9 705 individuals aged 18–79 years. Influenza vaccination coverage in the RGs increased from 20.6% in 2016 to 63.1% in 2022, before a reduction to 58.3% in 2023. Common reasons for non-vaccination were similar in all groups. The most cited reasons were “no need” for the vaccine and “no specific reason”, followed by “not recommended/offered the vaccine”, “worry about side effects” and “vaccine refusal”. The most frequent reasons for vaccination among the general population and RGs were protection against influenza and belonging to a RG, while the most frequent responses among HCWs were being offered the vaccine at work/work in health care, followed by a desire for protection against influenza. Receiving a vaccine recommendation from a health professional was mentioned in all groups. We also observed that the proportion reporting “no need” for the vaccine decreased over time, especially among HCWs, and that the proportions reporting vaccine refusal and worry about side effects as reasons for non-vaccination were temporarily reduced during the COVID-19 pandemic.

Conclusions:

The general population and RGs cite protection against influenza as their primary incentive for vaccination, while HCWs mainly refer to their professional role or workplace vaccination. For non-vaccination we see a similar pattern in all groups, with “no need” and “no specific reason” as the main reasons. Of note, worry about side effects and vaccine refusal is as frequent among HCWs as in other groups. Continued efforts to maintain and increase vaccine confidence are needed.

3 October Seminar: Wages and inequality in the Middle Ages

For the third Pandemics & Society Seminar of our Fall 2024 series we are pleased to welcome Spike Gibbs (Universität Mannheim). The seminar will be held on Thursday, 3 October at the normal time (1600 CEST). More information about our speaker and the presentation is below. You can sign up for email notifications about the seminar series, including the Zoom details, here.

Abstract

The in-kind wages paid to pre-industrial workers have recently received new attention by economic historians interested in understanding long-term living standards. However, in-kind wages are difficult to quantify leading historians to either ignore them entirely or use proxies such as consumer price index baskets of goods to capture their value. In this paper, we take a different approach by using a new dataset to directly measure the quantity, composition, and value of grain wages paid to late medieval agricultural workers across the period 1270 to 1440. This allows us to precisely measure remuneration, and the value of its cash and in-kind components, at the level of the individual worker. We use this information to evaluate the mechanisms which led to changes in labour remuneration in the period following the Black Death and differences in the effects between workers. Our results clearly demonstrate that the wages of the average adult male worker rose in the wake of the Plague, but only after a thirty-year hiatus, showing that changes in labour relations, rather than worker productivity in and of itself, drove the ‘golden age of labour’. However, preliminary investigations of variation between workers suggest a more complex story: while in the aggregate wages appear to have been similar across different manors held by the same estate, inequality in the wages paid between different types of worker were persistent, suggesting a rigidity in occupational hierarchies that was not overturned by the Plague. 

The paper is a collaboration with Jordan Claridge (LSE) and Vincent Delabastita (Radboud)

About the Speaker

Spike Gibbs is Junior Professor for the Economic History of the Middle Ages at the University of Mannheim. His research addresses topics such as local officeholding, agricultural wages, the economics of lordship, and the social networks of village communities.

Seminar Recording: How germs shaped history

If you missed the second Pandemics & Society Seminar of the Fall 2024 series with Jonathan Kennedy (Queen Mary, University of London) you can catch up with the video here.

Recordings of all of our Seminars, beginning with the Fall 2021 series, are available here.