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An empirical analysis of participation in international environmental agreements (2023)
Journal Article
Bellelli, F. S., Scarpa, R., & Aftab, A. (2023). An empirical analysis of participation in international environmental agreements. Journal of Environmental Economics and Management, 118, Article 102783. https://doi.org/10.1016/j.jeem.2023.102783

This study investigates the determinants of participation in environmental agreements, with a special focus on lobbying and regional agreements. To this end, we collated the largest ratification dataset in the literature and identified all countries... Read More about An empirical analysis of participation in international environmental agreements.

The Participation Dilemma: A Survey of the Empirical Literature on International Environmental Agreement Ratification (2022)
Journal Article
Bellelli, F. S., Aftab, A., & Scarpa, R. (2023). The Participation Dilemma: A Survey of the Empirical Literature on International Environmental Agreement Ratification. Review of Environmental Economics and Policy, 17(1), 3-21. https://doi.org/10.1086/722906

Several of the most pressing environmental problems involve transboundary issues and can be solved only through international cooperation. Hence, a successful policy response requires a good understanding of international environmental agreements—the... Read More about The Participation Dilemma: A Survey of the Empirical Literature on International Environmental Agreement Ratification.

Is local and organic produce less satiating? Some evidence from a field experiment (2022)
Journal Article
Franceschinis, C., Scarpa, R., Rossetto, L., & Thiene, M. (2022). Is local and organic produce less satiating? Some evidence from a field experiment. European Review of Agricultural Economics, 49(5), 1146-1178. https://doi.org/10.1093/erae/jbac014

We investigate consumers’ preferences towards local and organic food via a framed field experiment involving revealed multiple discrete–continuous choices. Participants were endowed with a cash amount as a budget to purchase any desired quantity of d... Read More about Is local and organic produce less satiating? Some evidence from a field experiment.

Would a simple attention-reminder in discrete choice experiments affect heuristics, preferences, and willingness to pay for livestock market facilities? (2022)
Journal Article
Kassie, G. T., Zeleke, F., Birhanu, M. Y., & Scarpa, R. (2022). Would a simple attention-reminder in discrete choice experiments affect heuristics, preferences, and willingness to pay for livestock market facilities?. PLoS ONE, 17(7), Article e0270917. https://doi.org/10.1371/journal.pone.0270917

This study addresses the question whether an ‘attention reminder’ in discrete choice experiments (DCE) affects preferences, willingness to pay (WTP), and attribute non-attendance (ANA). We report on an experiment which elicited preferences for livest... Read More about Would a simple attention-reminder in discrete choice experiments affect heuristics, preferences, and willingness to pay for livestock market facilities?.

Response times and subjective complexity of food choices: A web-based experiment across 3 countries (2022)
Journal Article
Atzori, R., Pellegrini, A., Lombardi, G., & Scarpa, R. (2023). Response times and subjective complexity of food choices: A web-based experiment across 3 countries. Social Science Computer Review, 41(4), 1381–1404. https://doi.org/10.1177/08944393211073585

Accurate collection of response times is one of the main advantages of web-administered stated choice experiments and it can be thought of as a behavioral indicator of cognitive effort. We use data from a food choice experiment administered across th... Read More about Response times and subjective complexity of food choices: A web-based experiment across 3 countries.

Perceived access to PrEP as a critical step in engagement: A qualitative analysis and discrete choice experiment among young men who have sex with men (2022)
Journal Article
Asiago-Reddy, E., McPeak, J., Scarpa, R., Braksmajer, A., Ruszkowski, N., McMahon, J., & London, A. (2022). Perceived access to PrEP as a critical step in engagement: A qualitative analysis and discrete choice experiment among young men who have sex with men. PLoS ONE, 17(1), Article e0258530. https://doi.org/10.1371/journal.pone.0258530

Young Men who have Sex with Men (MSM) continue to face disproportionate HIV risk. Despite its well accepted role in HIV prevention, pre-exposure prophylaxis (PrEP) uptake remains below desired goals. Systemic barriers to PrEP access, including insura... Read More about Perceived access to PrEP as a critical step in engagement: A qualitative analysis and discrete choice experiment among young men who have sex with men.

A General Public Study on Preferences and Welfare Impacts of Antimicrobial Resistance in the United Kingdom (2021)
Journal Article
Dorgali, M., Longo, A., Vass, C., Shields, G., Harrison, R., Scarpa, R., & Boeri, M. (2022). A General Public Study on Preferences and Welfare Impacts of Antimicrobial Resistance in the United Kingdom. PharmacoEconomics, 40(1), 65-76. https://doi.org/10.1007/s40273-021-01076-9

Background: Antibiotics have led to considerable increases in life expectancy. However, over time, antimicrobial resistance (AMR) has accelerated and is now a significant global public health concern. Understanding societal preferences for the use of... Read More about A General Public Study on Preferences and Welfare Impacts of Antimicrobial Resistance in the United Kingdom.

A Contingent Valuation Test for Measuring the Construct Validity of Willingness-to-pay Estimates derived from choice-experiments (2021)
Journal Article
Crastes Dit Sourd, R., Beaumais, O., Mahieu, P., Martinez-Camblor, P., & Scarpa, R. (2021). A Contingent Valuation Test for Measuring the Construct Validity of Willingness-to-pay Estimates derived from choice-experiments. Land Economics, 97(3), 608-625. https://doi.org/10.3368/wple.97.3.102219-0150r1

We introduce a protocol for measuring the construct validity of competing willingness-to-pay (WTP) distributions derived from mixed logit models. The protocol is based on a two-round survey. Round 1 consists in a standard discrete choice experiment (... Read More about A Contingent Valuation Test for Measuring the Construct Validity of Willingness-to-pay Estimates derived from choice-experiments.

Are Shareholders Willing To Pay For Financial, Social And Environmental Disclosure? A Choice-Based Experiment (2021)
Journal Article
de Villiers, C., Cho, C., Turner, M., & Scarpa, R. (2023). Are Shareholders Willing To Pay For Financial, Social And Environmental Disclosure? A Choice-Based Experiment. European Accounting Review, 32(1), 1-28. https://doi.org/10.1080/09638180.2021.1944890

This study investigates whether shareholders are willing to pay for higher levels of corporate financial, social, and environmental disclosure. We conduct a choice-based conjoint experiment wherein 65 shareholders are asked to make 12 choices, choosi... Read More about Are Shareholders Willing To Pay For Financial, Social And Environmental Disclosure? A Choice-Based Experiment.

Farm Households’ Perception of Weather Change and Flood Adaptations in Northern Pakistan (2021)
Journal Article
Aftab, A., Ahmed, A., & Scarpa, R. (2021). Farm Households’ Perception of Weather Change and Flood Adaptations in Northern Pakistan. Ecological Economics, 182, Article 106882. https://doi.org/10.1016/j.ecolecon.2020.106882

This research investigates farm households' adaptations to climate change-driven monsoon floods in the rural district of Nowshera, Pakistan. Some households in these flood-affected communities have undertaken autonomous adaptations to flooding. We su... Read More about Farm Households’ Perception of Weather Change and Flood Adaptations in Northern Pakistan.

Multi-country stated preferences choice analysis for fresh tomatoes (2020)
Journal Article
De Salvo, M., Scarpa, R., Capitello, R., & Begalli, D. (2020). Multi-country stated preferences choice analysis for fresh tomatoes. Bio-based and Applied Economics, 9(3), 241-262. https://doi.org/10.13128/bae-7928

In this study we investigate consumers’ preferences for fresh tomato attributes in four European countries by assessing and comparing Marginal Willingness-To-Pay (MWTP) estimates from panel Mixed Logit (MXL) models with utility specifications in the... Read More about Multi-country stated preferences choice analysis for fresh tomatoes.

Resolvable and near-epistemic uncertainty in stated preference for olive oil: an empirical exploration (2020)
Journal Article
Scarpa, R., Bazzani, C., Begalli, D., & Capitello, R. (2021). Resolvable and near-epistemic uncertainty in stated preference for olive oil: an empirical exploration. Journal of Agricultural Economics, 72(2), 335-369. https://doi.org/10.1111/1477-9552.12398

We elicit subjective probabilities of choice using a choice experiment designed to study preferences of German consumers for high quality Italian extra‐virgin olive oils. We develop an econometric framework to address the issues of resolvable and nea... Read More about Resolvable and near-epistemic uncertainty in stated preference for olive oil: an empirical exploration.

Do city dwellers care about peri-urban land use? The case of environment-friendly agriculture around Milan (2020)
Journal Article
Arata, L., Guastella, G., Pareglio, S., Scarpa, R., & Sckokai, P. (2021). Do city dwellers care about peri-urban land use? The case of environment-friendly agriculture around Milan. Journal of Environmental Planning and Management, 64(6), 1044-1066. https://doi.org/10.1080/09640568.2020.1799765

Undeveloped land adjacent to urban areas has a strong potential to generate high amenity values to urban dwellers via the adoption of environment-friendly agricultural practices. Yet, there is a lack of specific policy measures tailored to unlock suc... Read More about Do city dwellers care about peri-urban land use? The case of environment-friendly agriculture around Milan.

Logit Mixed Logit Under Asymmetry and Multimodality of WTP: a Monte Carlo Evaluation (2020)
Journal Article
Scarpa, R., Franceschinis, C., & Thiene, M. (2021). Logit Mixed Logit Under Asymmetry and Multimodality of WTP: a Monte Carlo Evaluation. American Journal of Agricultural Economics, 103(2), 643-662. https://doi.org/10.1111/ajae.12122

The logit‐mixed logit (LML) model advances choice modeling by generalizing previous parametric and semi‐nonparametric specifications and allowing retrieval of flexible taste distributions. Using standard operating conditions in the field, we report r... Read More about Logit Mixed Logit Under Asymmetry and Multimodality of WTP: a Monte Carlo Evaluation.

Handling resolvable uncertainty from incomplete scenarios in future doctors' job choice – probabilities vs discrete choices (2019)
Journal Article
Pedersen, L., Mørkbak, M., & Scarpa, R. (2020). Handling resolvable uncertainty from incomplete scenarios in future doctors' job choice – probabilities vs discrete choices. Journal of Choice Modelling, 34, Article 100199. https://doi.org/10.1016/j.jocm.2019.100199

Health economists often use discrete choice experiments (DCEs) to predict behavior, as actual market data is often unavailable. Manski (1990) argues that due to the incompleteness of the hypothetical scenarios used in DCEs, substantial uncertainty su... Read More about Handling resolvable uncertainty from incomplete scenarios in future doctors' job choice – probabilities vs discrete choices.

Public Resource Allocation, Strategic Behavior, and Status Quo Bias in Choice Experiments (2019)
Journal Article
Silz-Carson, K., Chilton, S., Hutchinson, W., & Scarpa, R. (2020). Public Resource Allocation, Strategic Behavior, and Status Quo Bias in Choice Experiments. Public Choice, 185(1-2), 1-19. https://doi.org/10.1007/s11127-019-00735-y

Choice experiments, a survey methodology in which consumers face a series of choice tasks requiring them to indicate their most preferred option from a choice set containing two or more options, are used to generate estimates of consumer preferences... Read More about Public Resource Allocation, Strategic Behavior, and Status Quo Bias in Choice Experiments.

Consumer switching in retail electricity markets: Is price all that matters? (2019)
Journal Article
Ndebele, T., Marsh, D., & Scarpa, R. (2019). Consumer switching in retail electricity markets: Is price all that matters?. Energy Economics, 83, 88-103. https://doi.org/10.1016/j.eneco.2019.06.012

We model consumer switching in retail electricity markets in New Zealand to identify important determinants of switching and estimate willingness to pay (WTP) for six non-price attributes of electricity services, namely, call waiting time, length of... Read More about Consumer switching in retail electricity markets: Is price all that matters?.

Congestion management in protected areas: accounting for respondents’ inattention and preference heterogeneity in stated choice data (2018)
Journal Article
Thiene, M., Franceschinis, C., & Scarpa, R. (2019). Congestion management in protected areas: accounting for respondents’ inattention and preference heterogeneity in stated choice data. European Review of Agricultural Economics, 46(5), 834-861. https://doi.org/10.1093/erae/jby041

Congestion levels in protected areas can be predicted by destination choice models estimated from choice data. There is growing evidence of subjects’ inattention to attributes in choice experiments. We estimate an attribute non-attendance latent clas... Read More about Congestion management in protected areas: accounting for respondents’ inattention and preference heterogeneity in stated choice data.

Ecosystem services' values and improved revenue collection for regional protected areas (2018)
Journal Article
Masiero, M. F., C. Mattea, S. T., M., D. P., & D. *Scarpa, R. (2018). Ecosystem services' values and improved revenue collection for regional protected areas. Ecosystem Services, 34(A), 136-153. https://doi.org/10.1016/j.ecoser.2018.10.012

The management of conservation areas is a costly enterprise, especially vulnerable to budget cutting when austerity measures are being considered. Optimal spatial taxation dictates that tax-payers contribute proportionally to the benefits they receiv... Read More about Ecosystem services' values and improved revenue collection for regional protected areas.