Quasi-experimental variation refers to situations in which assignment of treatments is 'as good as random' but treatments weren't assigned by the researchers in

Quasi-experimental variation refers to situations in which assignment of treatments is 'as good as random' but treatments weren't assigned by the researchers in an RCT. A classic example is Angrist and Lavy https://www.google.com/url?sa=t&source=web&rct=j&url=https://economics.mit.edu/files/8273&ved=2ahUKEwiMj8eU0O3pAhUtoHIEHdPlAOsQFjABegQIAxAB&usg=AOvVaw1gPz-k5Ku4F_MReT_jnjR0&cshid=1591461641270 https://www.google.com/url?sa=t&source=web&rct=j&url=https:/...