Research ArticleENVIRONMENTAL STUDIES
Air pollution and visitation at U.S. national parks
- View ORCID ProfileDavid Keiser1,2,*,
- View ORCID ProfileGabriel Lade1,2,* and
- View ORCID ProfileIvan Rudik3,*,†
- 1Department of Economics, Iowa State University, 518 Farmhouse Lane, Ames, IA 50011, USA.
- 2Center for Agricultural and Rural Development, Iowa State University, Ames, IA 50011, USA.
- 3Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853, USA.
- ↵†Corresponding author. Email: irudik{at}cornell.edu
↵* These authors contributed equally to this work.
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Science Advances 18 Jul 2018:
Vol. 4, no. 7, eaat1613
DOI: 10.1126/sciadv.aat1613
Vol. 4, no. 7, eaat1613
DOI: 10.1126/sciadv.aat1613
David Keiser
1Department of Economics, Iowa State University, 518 Farmhouse Lane, Ames, IA 50011, USA.
2Center for Agricultural and Rural Development, Iowa State University, Ames, IA 50011, USA.
Gabriel Lade
1Department of Economics, Iowa State University, 518 Farmhouse Lane, Ames, IA 50011, USA.
2Center for Agricultural and Rural Development, Iowa State University, Ames, IA 50011, USA.
Ivan Rudik
3Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853, USA.
