Hotard, Michael
Lawrence, Duncan http://orcid.org/0000-0002-6495-5151
Laitin, David D. http://orcid.org/0000-0002-7911-7089
Hainmueller, Jens
Article History
Received: 12 September 2018
Accepted: 4 March 2019
First Online: 15 April 2019
Competing interests
: The authors declare no competing interests.