Ideological Bias in Estimates of the Impact of Immigration

George Borjas and Nate Breznau

No 33274, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: When studying policy-relevant topics, researchers’ policy preferences may shape the design, execution, analysis, and interpretation of results. Detection of such bias is challenging because the research process itself is not normally part of a controlled experimental setting. Our analysis exploits a rare opportunity where 158 researchers working independently in 71 research teams participated in an experiment. After being surveyed about their position on immigration policy, they used the same data to answer the same well-defined empirical question: Does immigration affect the level of public support for social welfare programs? The researchers estimated 1,253 alternative regression models, producing a frequency distribution of the measured impact ranging from strongly negative to strongly positive. We find that research teams composed of pro-immigration researchers estimated more positive impacts of immigration on public support for social programs, while anti-immigration research teams reported more negative estimates. Moreover, the methods used by teams with strong pro- or anti- immigration priors received lower “referee scores” from their peers in the experiment. These lower-rated models helped produce the different effects estimated by the teams at the tails of the immigration sentiment distribution. The underlying research design decisions are the mechanism through which ideology enters the production function for parameter estimates.

JEL-codes: C90 I38 J69 (search for similar items in EconPapers)
Date: 2024-12
New Economics Papers: this item is included in nep-dem, nep-exp, nep-int and nep-lab
Note: LS
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.nber.org/papers/w33274.pdf (application/pdf)
Access to the full text is generally limited to series subscribers, however if the top level domain of the client browser is in a developing country or transition economy free access is provided. More information about subscriptions and free access is available at http://www.nber.org/wwphelp.html. Free access is also available to older working papers.

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:nbr:nberwo:33274

Ordering information: This working paper can be ordered from
http://www.nber.org/papers/w33274
The price is Paper copy available by mail.

Access Statistics for this paper

More papers in NBER Working Papers from National Bureau of Economic Research, Inc National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.. Contact information at EDIRC.
Bibliographic data for series maintained by ().