Environmental Degradation and Migration

40 Pages Posted: 15 Jul 2012 Last revised: 7 Nov 2013

See all articles by Vally Koubi

Vally Koubi

University of Bern - Department of Economics

Gabriele Spilker

ETH Zurich - Center for Comparative and International Studies

Lena M. Schaffer

ETH Zürich

Thomas Bernauer

ETH Zurich

Date Written: 2012

Abstract

The argument that environmental degradation is an important driving force of migration has experienced a strong revival in the climate change context. While various studies predict large environmental migration flows due to climate change and other environmental stressors, the ex post empirical evidence for such migration is very patchy at best. We contribute to the emerging empirical literature in this field by focusing on the micro-level. We examine how and why different types of environmental conditions may lead to internal migration. The analysis relies on survey data for both migrants and non-migrants in 12 countries. The results suggest that while long-term environmental events, such as droughts, have no significant effect on internal migration, sudden-onset environmental events in the form of floods significantly increase the likelihood of migration. Furthermore, individual perceptions of negative environmental conditions can motivate people to move. We also find that people tend to respond to long-term environmental problems, such as environmental degradation, with adaptation, rather than migration. These findings indicate that different types of environmental problems – notably, natural hazards vs. gradual environmental degradation – can create different incentives for people to migrate or stay.

Keywords: environmental degradation, floods, droughts, perceptions, migration, micro-level analysis

JEL Classification: Z00

Suggested Citation

Koubi, Vally and Spilker, Gabriele and Schaffer, Lena M. and Bernauer, Thomas, Environmental Degradation and Migration (2012). Available at SSRN: https://ssrn.com/abstract=2107133 or http://dx.doi.org/10.2139/ssrn.2107133

Vally Koubi (Contact Author)

University of Bern - Department of Economics ( email )

Schanzeneckstrasse 1
Bern, CH-3001
Switzerland

Gabriele Spilker

ETH Zurich - Center for Comparative and International Studies ( email )

Haldeneggsteig 4
Zürich, 8092
Switzerland

Lena M. Schaffer

ETH Zürich ( email )

Haldeneggsteig 4
Zürich, 8092
Switzerland

Thomas Bernauer

ETH Zurich ( email )

Center for Comparative and International Studies
Building IFW, office 45.1, Haldeneggsteig 4
Zurich 8092, 8092
Switzerland
+41 44 632 6466 (Phone)
+41 44 632 1289 (Fax)

HOME PAGE: http://www.ib.ethz.ch

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