40,800 rated or chosen profiles from 10,200 respondents, in up to 2 tasks of 2 profiles varying on 3 attributes.

About this table

Description	Adults in six EU countries (n = 10,200; Denmark, Germany, Greece, Hungary, Italy, Poland) compared two pairs of models of a common European migration policy that varied the mode of refugee protection, the form of migration control and bindingness; forced choice plus a 1-7 rating of each model.
Reference	Lutz, P., & Bachelet, M. (2026). Europe's immigration divide: multidimensional responsibility-sharing as a solution? Journal of European Public Policy, 1-28.
DOI	10.1080/13501763.2026.2636284
Licence	CC BY 4.0
Source data	https://doi.org/10.6084/m9.figshare.31434858

Notes

Conjoint table (irw_conjoint_2). choice = 'Which of the two models of European migration policy do you favour?' (forced choice, no opt-out, 2 pairs); rating = 'How would you rate Model A [B]?', 1 strongly disagree to 7 strongly agree (higher = more favourable). Choice is NA for some respondents' tasks (ratings kept). Six countries pooled as the authors do; N against the article not checked.

These notes describe the source data, which the IRW reproduces as released. All notes are listed on the Data Notes page.

Size and shape

Respondents	10,200
Rows (one per respondent, task and profile)	40,800
Tasks per respondent (most)	2
Profiles per task	2
Attributes	3
Tasks with no profile chosen	0

Design

Topic	immigration asylum
A profile represents	policy
Country	DK, DE, GR, HU, IT, PL
Language shown	da, de, el, hu, it, pl
Language of stored levels	en
Task order	recorded in the deposit
Profile position	recorded in the deposit

Outcomes:

choice	Which of the two models of European migration policy do you favour? Model A or Model B [choice, forced]
rating	How would you rate Model A [B]? [rating, 1 (strongly disagree) to 7 (strongly agree)]

Columns

attr_controlattr_protectattr_ruleschoicecov_agecov_countrycov_education_groupcov_gendercov_lrsidprofileratingtask

The layout (one row per respondent, task and profile; choice/rating outcomes; attr_ columns holding each attribute level as displayed) is defined in the IRW conjoint standard. What the outcomes asked is under Design above.

Get the data

Download CSVno account needed Browse on Redivisexplore and query Croissant metadataHugging Face, Kaggle, OpenML

Or load it directly in R or Python (both need a free Redivis account; the first call opens a browser to sign in):

# R
install.packages("remotes")
remotes::install_github("itemresponsewarehouse/Rpkg")
library(irw)
df <- irw_fetch("lutz_2026_responsibility_sharing", source = "conj")

# Python
pip install irw

import irw
df = irw.fetch("lutz_2026_responsibility_sharing", source="conj")

How to cite

@article{Lutz_2026, title={Europe’s immigration divide: multidimensional responsibility-sharing as a solution?}, ISSN={1466-4429}, url={http://dx.doi.org/10.1080/13501763.2026.2636284}, DOI={10.1080/13501763.2026.2636284}, journal={Journal of European Public Policy}, publisher={Informa UK Limited}, author={Lutz, Philipp and Bachelet, Maud}, year={2026}, month=Feb, pages={1–28} }

Version and provenance

IRW version	v584
Redivis dataset	irw_conjoint_2 v1.4
Redivis dataset DOI	10.57761/hk97-wv30
Manifest pin for this IRW version	v1.4
Metadata source	irw_meta v44.0