A response to Pettersson-Lidbom’s “Exit, Voice and Political Change: Evidence from Swedish Mass Migration to the United States – a Comment”

Mounir Karadja and Erik Prawitz

No 2020:5, Working Paper Series from Uppsala University, Department of Economics

Abstract: In a comment to Karadja & Prawitz (2019), henceforth KP, Per Pettersson-Lidbom (2020), henceforth P-L, argues that the main results in KP are severely biased. He argues that KP's results are biased due to non-classical measurement error in emigration and due to confounders related to the instrument. In this response, we show that P-L's reasoning regarding measurement error bias contradicts the results from his proposed test. More generally, P-L's results cannot exclude alternative and arguably more likely explanations. We present two straightforward tests that both indicate that measurement error does not bias KP's results. Second, we argue that KP controls for confounders in a standard way given the identication strategy. Including fixed effects at the level of the exogenous cross-sectional variation, as P-L does, severely limits the available identifying variation and decreases precision. Nevertheless, we document that KP's results are robust to non-linear frost shock controls, including fixed effects for groups of similar frost shocks. In addition, we show that our results are robust to altering regional fixed effects or dropping them altogether, in contrast to what is suggested by P-L.

Keywords: emigration; labor unions; political institutions; instrumental variables; measurement error (search for similar items in EconPapers)
JEL-codes: D72 J61 P16 (search for similar items in EconPapers)
Pages: 25 pages
Date: 2020-08-11
New Economics Papers: this item is included in nep-ure
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://uu.diva-portal.org/smash/get/diva2:1457380/FULLTEXT01.pdf Full text (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hhs:uunewp:2020_005

Access Statistics for this paper

More papers in Working Paper Series from Uppsala University, Department of Economics Department of Economics, Uppsala University, P. O. Box 513, SE-751 20 Uppsala, Sweden. Contact information at EDIRC.
Bibliographic data for series maintained by Ulrika Öjdeby ().