Media type: E-Article Title: Productivity and Health: Physical Activity as a Measure of Effort Contributor: Akogun, Oladele; Dillon, Andrew; Friedman, Jed Arnold; Prasann, Ashesh; Serneels, Pieter M. Published: Elsevier BV, 2020 Published in: SSRN Electronic Journal (2020) Language: English DOI: 10.2139/ssrn.3529752 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: