Klein and coauthors have published a paper showing that “dry tinder” and several other special factors explain most of the out-sized Covid death toll in Sweden, compared to other Nordic countries. “Dry tinder” is a forest-fire metaphor to clarify how previous flu seasons affect the 2020 death toll.
Research references:
SSRN: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3674138
American Institute for Economic Research: https://www.aier.org/article/swedens-high-covid-death-rates-among-the-nordics-dry-tinder-and-other-important-factors
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September 09, 2020