Maury Harris was a top economist in the U.S. When he retired, he went back to graduate school to study criminology. This is his first publication. (Full disclosure: He is the brother-in-law of my late younger sister).

An important excerpt:

The extremely low 2020 homicide levels in Canada, the United Kingdom and Germany relative to the US undoubtedly reflect exceptionally high gun ownership in the US with 1.20 guns for every resident in 2019. In contrast, guns per resident were 0.35 in Canada, 0.20 in Germany and 0.06 in the United Kingdom. It gets worse. For 2020, the FBI reports that US firearm background checks—a proxy for legal domestic gun sales–jumped by 40% to a record 39.7 million.