4,080 rated or chosen profiles from 340 respondents, in up to 6 tasks of 2 profiles varying on 6 attributes.
One of 6 tables from the same source; this one is the parmigiano_it table. The others are listed under Related tables.
| Description | Discrete choice experiment: Italian consumers (online Qualtrics panel via TGM Research, quota-representative by gender and age, Feb-Mar 2025; n = 340) chose among two options and a 'Neither' alternative on 6 cards; profiles describe Parmigiano Reggiano varying cow feed (alfalfa / fodder mixtures), the 'di Montagna' label, ageing, purchasing place, CO2 compensation and price per kg. Outcome is the chosen option (opt-out allowed). |
|---|---|
| Reference | Chen, J., Mzek, T., & Piras, S. (2025). Dataset of choice experiment surveys assessing consumers' and farmers' preferences for five underutilised crops in different European countries [Data set]. Zenodo. |
| Licence | CC BY 4.0 |
| Source data | https://doi.org/10.5281/zenodo.15420092 |
These notes describe the source data, which the IRW reproduces as released. All notes are listed on the Data Notes page.
| Respondents | 340 |
|---|---|
| Rows (one per respondent, task and profile) | 4,080 |
| Tasks per respondent (most) | 6 |
| Profiles per task | 2 |
| Attributes | 6 |
| Tasks with no profile chosen | 202 |
| Topic | consumer products |
|---|---|
| A profile represents | product service |
| Country | IT |
| Language shown | unknown |
| Language of stored levels | en |
| Randomization restrictions | yes (stated by the source): the codebook (ageing) states that with the 'Parmigiano Reggiano di Montagna' label the quality selection happens at 20 months minimum: label Yes never occurs with 12 months ageing; fixed blocked design of 36 cards in 6 sets; level_weights: label present in 1,586 vs absent in 2,494 profiles, 12-month ageing 907 vs ~1,590 for the others (follows from the label-ageing rule) |
| Task order | inferred from row order |
| Profile position | recorded in the deposit |
Because the attribute levels were not randomized independently, an estimator has to account for the restriction; a plain difference in means across levels can mislead. Task order or profile position was rebuilt from row order; analyses of position or task order should leave it out.
Outcomes:
| choice | Which option would you buy? (paraphrase) [choice, opt-out allowed] |
|---|
attr_ageingattr_cost_per_kgattr_environmental_impactattr_feedattr_label_montagnaattr_purchasing_placechoicecov_age_groupcov_duration_seccov_educationcov_gendercov_income_perccov_income_rangeidprofiletasktrial_choice_cardtrial_choice_settrial_treated
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.
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("chen_2025_parmigiano_it", source = "conj")
# Python
pip install irw
import irw
df = irw.fetch("chen_2025_parmigiano_it", source="conj")
@misc{https://doi.org/10.5281/zenodo.15420092,
doi = {10.5281/ZENODO.15420092},
url = {https://zenodo.org/doi/10.5281/zenodo.15420092},
author = {CHEN, Jianyu and Mzek, Tareq and Piras, Simone},
keywords = {underutilised crops, consumer preferences, farmer preferences, discrete choice experiment, public good game, food behaviour, farmer behaviour},
language = {en},
title = {Dataset of choice experiment surveys assessing consumers' and farmers' preferences for five underutilised crops in different European countries},
publisher = {Zenodo},
year = {2025},
copyright = {Creative Commons Attribution 4.0 International}
}
| 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 |