30,760 rated or chosen profiles from 3,076 respondents, in up to 5 tasks of 2 profiles varying on 6 attributes.

About this table

Description	Paired conjoint on universal basic income designs in Germany: 3,076 respondents compared 5 pairs of UBI proposals varying eligibility by citizenship, residence requirement, jurisdiction (Germany or Hamburg), conditions, monthly amount and financing; outcomes are a forced choice and a 0-10 support rating of each proposal.
Reference	Becker, B., & Schwander, H. (2025). Who wants what, and why? Attitude polarization and political viability of UBI. Journal of European Social Policy.
DOI	10.1177/09589287251400044
Licence	CC0 1.0
Source data	https://doi.org/10.7910/DVN/6EBZTP

Notes

Conjoint table (irw_conjoint). Five paired UBI-proposal tasks with six German-text attributes; choice = preferred proposal (Vorschlag A/B; paraphrase, forced choice, no opt-out), rating = support for each proposal, 0 'Auf keinen Fall' to 10 'Voll und ganz' (paraphrase; integer from the answer label). Respondent IDs re-keyed; N = 3,076, no rows dropped.

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	3,076
Rows (one per respondent, task and profile)	30,760
Tasks per respondent (most)	5
Profiles per task	2
Attributes	6
Tasks with no profile chosen	0

Design

Topic	tax welfare economy
A profile represents	policy
Country	DE
Language shown	de
Language of stored levels	de
Randomization restrictions	unknown
Task order	recorded in the deposit
Profile position	recorded in the deposit

Outcomes:

choice	Which of the two proposals do you prefer? (paraphrase) [choice, forced]
rating	How much would you support this proposal? (paraphrase) [rating, 0 (Auf keinen Fall) to 10 (Voll und ganz)]

Columns

attr_citizenshipattr_financingattr_generosityattr_jurisdictionattr_requirementsattr_residencechoicecov_agecov_gendercov_income_catcov_ubi_support3cov_vote_intentionidprofileratingtask

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("becker_2025_basic_income", source = "conj")

# Python
pip install irw

import irw
df = irw.fetch("becker_2025_basic_income", source="conj")

How to cite

@article{Becker_2025, title={Who wants what, and why? Attitude polarization and political viability of UBI}, volume={36}, ISSN={1461-7269}, url={http://dx.doi.org/10.1177/09589287251400044}, DOI={10.1177/09589287251400044}, number={4}, journal={Journal of European Social Policy}, publisher={SAGE Publications}, author={Becker, Bastian and Schwander, Hanna}, year={2025}, month=Dec, pages={375–397} }

Version and provenance

IRW version	v584
Redivis dataset	irw_conjoint v4.2
Redivis dataset DOI	10.57761/qkye-q530
Manifest pin for this IRW version	v4.2
Metadata source	irw_meta v44.0