Choice Experiment Research Articles

Quantifying consumers’ cost-value trade-offs on on-demand food delivery services: Value-of-time framework and partitioned pricing

PurposeThis study aims to quantitatively characterize consumers' value-cost trade-offs in on-demand food delivery (ODFD) services. On the value side, the study endeavors to monetize the convenience value of ODFD with a Value-of-Time (VOT) framework, while on the cost side, this study investigates the implication of ODFD's partitioned pricing structure with the theoretical tenet of Attribution Theory. Design/methodology/approachA stated choice experiment is developed and distributed to an online panel in Singapore with 580 valid responses collected. The data is then analyzed with a mixed logit model. FindingsThe results show that cost, time, and health-related factors significantly influence consumers' dining channel choices. In terms of time, consumers' differentiated time sensitivities are revealed. Specifically, consumers are most sensitive to walking time, followed by waiting time at food establishments and at their own places. Also, the food type and dining locations affect consumers’ time perceptions. Regarding cost, consumers exhibit an inflated price sensitivity toward food premiums compared to delivery fees. Originality/valueThis study addresses the lack of quantitative investigations into the value-cost tradeoffs in ODFD services. ODFD's convenience values are quantified and monetized with a novel VOT-based framework. Besides, the study sheds light on the underexplored partitioner pricing scheme with the theoretical tenet of the Attribution Theory. Overall, the research provides behavioral insights to support practitioners' operational decision-making.

Adolescent-Preferred financial incentives to promote type 1 diabetes Self-Care: A discrete choice experiment

AimsThis study aimed to quantify preferences for the characteristics of a financial incentives program that would motivate adolescent engagement in type 1 diabetes (T1D) self-care. MethodWe performed a discrete choice experiment with 12–18 year-olds with T1D from two pediatric hospital endocrinology clinics (n = 317). We identified key attributes of incentives: (1) monthly value of the reward, (2) payment structure, and (3) difficulty of incentivized behaviors. In twelve choice questions, adolescents chose the incentive option from a pair of profiles that was more likely to motivate them to increase adherence to recommended self-care. Options presented were tailored to adolescents’ T1D technology use and perceived difficulty of completing each behavior. We analyzed data using a conditional logit model. ResultsThe value of the reward accounted for 60.8% of preferences. Adolescents were willing to accept lower value rewards when incentive payments used positive vs. negative reinforcement (−$10.88 (95% CI: −$12.60, −9.24)) and preferred higher incentives for performing hard vs. easier behaviors (+$14.92 (95% CI: +$12.66, +$17.28)). ConclusionsStated preferences can inform intervention design. Future research will evaluate the external validity of the discrete choice experiment-informed intervention design by assessing adolescent health and behavioral outcomes in a randomized controlled trial.

The value of national defense: Assessing public preferences for defense policy options

Defense spending accounts for a large share of the budget in many countries, but the value of the resulting public good – national defense – has so far escaped assessment. Much of the literature has instead considered indirect benefits of defense spending in terms of greater economic growth or technological spillovers. In this paper, we assess the direct welfare effects of defense policy, namely an increase in the security of citizens, by means of a survey-based discrete choice experiment. Drawing on a representative sample of the German population, results suggest substantial willingness to pay for an increase in troop numbers, the establishment of a European army and an improved air defense system. The reintroduction of compulsory military service does not enjoy public support. Results further indicate substantial preference heterogeneity across respondents and policy options which we explore. As such, these findings demonstrate how methods of survey-based, non-market valuation can help to refine research in this area of public policy.

Chinese consumers' valuation for prepared plant-based meat products: Does environmental information matter?

Despite the growing interest in innovative nonanimal protein-prepared foods, knowledge about consumer demand for these newly prepared foods and their potential scope in the market could be improved. This study reports the results of a discrete choice experiment on consumers' (n=1245) willingness to pay (WTP) for prepared plant-based meat (PPBM) in the context of Chinese food culture. Consumers were randomly assigned to a treated group with additional environmental information about PPBM. The estimation results of the random parameter logit model showed that when environmental information was provided, consumer preferences and WTP for frozen meatballs with mixed meat (beef-based and soy protein-based meat) and PBM (pure soy protein-based meat) significantly increased. However, their preference and WTP for food quality and safety attributes of meatballs decreased. Simultaneously, the availability of information reveals the heterogeneity of preferences. This study found that positive WTP for PPBM was limited to consumers with a low degree of food technology neophobia (FTN) and that consumers with a high degree of FTN may avoid purchasing meatballs made from PBM. In contrast, consumers with a higher time preference (i.e., impatient consumers) were likelier to pay for PPBM meatballs. PRACTICAL APPLICATION: PPBM is especially valuable in developing innovative nonanimal protein-prepared foods, and China has the potential to become the largest PPBM food market. Understanding consumers' preference for PPBM products and the impact of information provision on their WTP will assist food companies in devising suitable strategies for the development of new PPBM products. The findings of this study provide targeted market insights for the food industry to help guide the development of plant-based meat products more effectively.

High-speed railway in developing countries: mind the gap -lessons from Morocco-

ABSTRACT Conducted prior to the launch of the High-Speed Railway (HSR) in Morocco, this study aims to be the first research to assess the HSR project through the estimation of the value of travel time savings. We focused on inter-urban routes to assess the HSR project impact. We conducted a Discrete Choice Experiment in the cities impacted (directly or indirectly) by the HSR project, which are Tangier, Kenitra, Rabat, Casablanca and Marrakesh. Our results show that at the sample average points of each mode of transport, the values of travel time savings are approximately 94MAD/h for car users, 27MAD/h for train users and 25MAD/h for bus users. We performed a simulation for the Tangier-Casablanca route and obtained satisfactory results (93MAD/h, 26MAD/h and 24MAD/h, for private car, train, and bus journeys respectively). Finally, our results show that the pricing strategies of the national railway operator (Office National des Chemins de Fer) present a potential risk of eviction, which could counterbalance the positive impact of the time savings.

Occupants’ willingness to reduce in-room energy consumption − a discrete choice experiment (DCE) approach with occupants in a student apartment

This study pioneers a comprehensive methodology to quantify occupants’ willingness to reduce energy consumption behaviors, specifically focusing on student occupants within a student apartment under an all-inclusive payment rental scheme. Employing a dual-component approach, the study combines self-indicated energy consumption behavior attributes with the financial rebate occupants are willing to accept, shedding light on the intricate factors influencing their decisions regarding energy consumption. The Discrete Choice Experiment (DCE) serves as a novel tool to identify and measure the financial value, conceptualized as Willingness-to-Accept (WTA), for specific energy-saving behaviors, contributing to a nuanced understanding of the economic valuation placed on sustainable practices. A pre-survey and a DCE-based survey were conducted within the student apartment, the former one comprehending general energy consumption behaviour patterns and rebate preferences, and the latter examining the impact of financial incentives on behavioral changes, providing a comprehensive and longitudinal perspective. The findings highlight the paramount influence of factors such as “air conditioning setpoint” on occupants’ decisions followed by “lighting time” and “shower time”, emphasizing the delicate balance between occupant comfort, financial considerations, and environmental consciousness. Despite limitations related to the specificity of the study context and potential discrepancies between hypothetical and real-world behavior, this research offers practical implications for designing effective energy-saving interventions tailored to the unique characteristics of student occupants. Policymakers and stakeholders can leverage these insights to inform incentive structures, energy conservation initiatives, or pricing strategies that align with consumer preferences, ultimately encouraging sustainable energy practices in residential settings.

Using Separate Single-Outcome Risk Presentations Instead of Integrated Multioutcome Formats Improves Comprehension in Discrete Choice Experiments.

Despite decades of research on risk-communication approaches, questions remain about the optimal methods for conveying risks for different outcomes across multiple time points, which can be necessary in applications such as discrete choice experiments (DCEs). We sought to compare the effects of 3 design factors: 1) separated versus integrated presentations of the risks for different outcomes, 2) use or omission of icon arrays, and 3) vertical versus horizontal orientation of the time dimension. We conducted a randomized study among a demographically diverse sample of 2,242 US adults recruited from an online panel (mean age 59.8 y, s = 10.4 y; 21.9% African American) that compared risk-communication approaches that varied in the 3 factors noted above. The primary outcome was the number of correct responses to 12 multiple-choice questions asking survey respondents to identify specific numbers, contrast options to recognize dominance (larger v. smaller risks), and compute differences. We used linear regression to test the effects of the 3 design factors, controlling for health literacy, graph literacy, and numeracy. We also measured choice consistency in a subsequent DCE choice module. Mean comprehension varied significantly across versions (P < 0.001), with higher comprehension in the 3 versions that provided separated risk information for each risk. In the multivariable regression, separated risk presentation was associated with 0.58 more correct responses (P < 0.001; 95% confidence interval: 0.39, 0.77) compared with integrated risk information. Neither providing icon arrays nor using vertical versus horizontal time formats affected comprehension rates, although participant understanding did correlate with DCE choice consistency. In presentations of multiple risks over multiple time points, presenting risk information separately for each health outcome appears to increase understanding. When conveying information about risks of different outcomes at multiple time points, separate presentations of single-outcome risks resulted in higher comprehension than presentations that combined risk information for different outcomes.We also observed benefits of presenting single-outcome risks separately among respondents with lower numeracy and graph literacy.Study participants who scored higher on risk understanding were more internally consistent in their responses to a discrete choice experiment.

Physician preferences for treatment of low-density lipoprotein cholesterol among patients with atherosclerotic cardiovascular disease (ASCVD)–A discrete choice experiment

ObjectiveApproximately 80 % of patients with atherosclerotic cardiovascular disease (ASCVD) do not achieve the guideline-based target for low-density lipoprotein (LDL-C) levels in current clinical practice, particularly the 95 % of ASCVD patients receiving oral statin monotherapy. The objective was to determine physician prescribing preferences for LDL-C lowering therapies beyond statins for patients with ASCVD. MethodsA discrete choice experiment (DCE) survey was administered to cardiologists and primary care physicians in the United States, presenting a series of treatment choices systematically varied across 8 treatment attributes: % LDL-C reduction, myalgias, other side effects, route and frequency of administration, time to prior authorization, patient monthly out-of-pocket cost (mOOP), and adherence. Data were analyzed using logistic regression to estimate preference weights for each attribute. ResultsA total of 200 cardiologists and 50 primary care physicians (PCPs) completed the survey. Both exhibited similar prescribing preferences, highly valuing efficacy in reducing LDL-C levels and minimization of patients OOP cost. Each additional 10 % reduction in LDL-C was associated with a 69 % relative increase in physician preference. By contrast, a 10 % relative decrease in preference was observed for each $10 additional monthly mOOP. Compared to PCPs, cardiologists tended to place more emphasis on LDL-C reduction, being more willing to accept higher mOOP or side effects. Although oral therapies were preferred, injectable therapies, like the PCSK9 siRNA-like drug, administered less frequently that allowed for greater LDL-C reduction were seen as having considerable utility, especially among patients with a history of medication nonadherence. ConclusionThese results document considerable preference similarities among cardiologist and PCP prescribers of LDL-C lowering therapies for ASCVD. Broad availability of several therapies with varying administration frequencies and product profiles are likely of great value to prescribing physicians aiming to achieve target LDL-C concentrations. Considering all aspects of treatment, most participants preferred a PCSK9 siRNA-like drug.

Investigating the Role of Political Messaging on Preferences for Local Food Products in the United States

AbstractThis study investigates whether wording a promotional marketing message as originating from the US government vs. the US president impacts consumers’ responsiveness to the message. Using a discrete choice experiment, it examines consumer responsiveness to President Biden’s order promoting domestic production. Results indicate that consumers are willing to pay a premium for domestically produced tomatoes, with variations based on political affiliations and product attributes like organic labeling and farm employment practices. However, findings on the significance of information treatment effects are mixed, suggesting that consumer responsiveness is unaffected by wording the message as originating from a broad political body vs. a specific politician.

Sexual selection may support phenotypic plasticity in male coloration of an African cichlid fish.

The expression of sexually selected traits, such as ornaments or body coloration, is often influenced by environmental conditions. While such phenotypic plasticity is often thought to precede evolutionary change, plasticity itself can also be a target of selection. However, the selective forces supporting the evolution and persistence of plasticity in sexual traits are often unclear. Using the cichlid fish Astatotilapia burtoni, we show that variation in the level of mate competition may promote plasticity in body coloration. In this species, males can change between yellow and blue colour. We found that experimentally increased competition over mating territories led to a higher proportion of males expressing the yellow phenotype. The expression of yellow coloration was found to be beneficial because yellow males won more staged dyadic contests and exhibited a lower level of oxidative stress than blue males. However, females were more likely to spawn with blue males in mate choice experiments, suggesting that expression of blue coloration is sexually more attractive. The ability to adjust colour phenotype according to the local competitive environment could therefore promote the persistence of plasticity in coloration.

Developing feasible person-centred care alternatives to emergency department responses for adults with epilepsy: a discrete choice analysis mixed-methods study.

Calls have been made for paramedics to have some form of care pathway that they could use to safely divert adults with epilepsy away from emergency departments and instigate ambulatory care improvements. Different configurations are possible. To know which to prioritise for implementation/evaluation, there is a need to determine which are acceptable to service users and likely National Health Service-feasible. (1) Identify configurations being considered, (2) understand service users' views of them and current provision, (3) identify what sort of care service users want and (4) determine which configuration(s) is considered to achieve optimal balance in meeting users' preference and being National Health Service-feasible. Service providers were surveyed to address objective 1. Interviews with service users addressed objective 2. Objective 3 was addressed by completing discrete choice experiments. These determined users' care preferences for different seizure scenarios. Objective 4 was addressed by completing 'knowledge exchange' workshops. At these, stakeholders considered the findings on users' stated preferences and judged different pathway configurations against Michie's 'acceptability, practicability, effectiveness, affordability, side-effects and equity' feasibility criteria. This project took place in England. The survey recruited representatives from neurology and neuroscience centres and from urgent and emergency care providers. For the interviews, recruitment occurred via third-sector support groups. Recruitment for discrete choice experiments occurred via the North West Ambulance Service NHS Trust and public advert. Workshop participants were recruited from neurology and neuroscience centres, urgent and emergency care providers, support groups and commissioning networks. Seventy-two services completed the survey. Interviews were conducted with 25 adults with epilepsy (and 5 relatives) who had emergency service contact in the prior 12 months. Discrete choice experiments were completed by 427 adults with epilepsy (and 167 relatives) who had ambulance service contact in the prior 12 months. Workshops were completed with 27 stakeholders. The survey identified a range of pathway configurations. They differed in where they would take the patient and their potential to instigate ambulatory care improvements. Users had been rarely consulted in designing them. The discrete choice experiments found that users want a configuration of care markedly different to that offered. Across the seizure scenarios, users wanted their paramedic to have access to their medical records; for an epilepsy specialist (e.g. an epilepsy nurse, neurologist) to be available to advise; for their general practitioner to receive a report; for the incident to generate an appointment with an epilepsy specialist; for the care episode to last < 6 hours; and there was a pattern of preference to avoid conveyance to emergency departments and stay where they were. Stakeholders judged this configuration to be National Health Service-feasible within 5-10 years, with some elements being immediately deployable. The discrete choice experiment sample was broadly representative, but those reporting recent contact with an epilepsy specialist were over-represented. Users state they want a configuration of care that is markedly different to current provision. The configuration they prefer was, with support and investment, judged to likely be National Health Service-feasible. The preferred configuration should now be developed and evaluated to determine its actual deliverability and efficacy. The study is registered as researchregistry4723. This award was funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme (NIHR award ref: 17/05/62) and is published in full in Health and Social Care Delivery Research; Vol. 12, No. 24. See the NIHR Funding and Awards website for further award information.

The impact of cultural amenities on inter-urban location: a discrete choice experiment on French students

The impact of cultural amenities on inter-urban location: a discrete choice experiment on French students

Treatment Preferences of Adult Patients with Attention-Deficit/Hyperactivity Disorder - A Discrete Choice Experiment.

Understanding patient preferences for treatments may facilitate shared decision-making. This study assessed adult patient preferences for attention-deficit/hyperactivity disorder (ADHD) treatments in a sample of 600 patients in the United States (US). A web-based discrete choice experiment (DCE) survey was conducted among treated adults with ADHD. Participants were recruited from Dynata's US panel (06/22/2023-07/06/2023). Attributes and levels, identified based on clinical inputs and published data, included efficacy and safety. Participants' preferences were estimated using conditional logistic regression. Willingness to trade-off and attributes' relative importance were calculated. Overall preferences for treatment profiles approximating centanafadine, lisdexamfetamine, atomoxetine, and viloxazine were estimated using adjusted total utilities. Results were stratified by current treatment status. Sensitivity analyses including participants who passed validity tests were conducted. Among the 600 participants (mean age 37.9 years; 66.2% female; 50.8% treated), all attributes had a statistically significant impact on preferences for ADHD treatments (p < 0.001); the most important attribute was improvement in ADHD symptoms (36%), followed by risks of nausea (25%), insomnia (20%), anxiety (8%), dry mouth (6%), and feeling jittery (5%). Together, safety attributes accounted for >60% of relative importance in decision-making. Participants were willing to forgo 0.59, 0.57, 0.49, 0.32, and 0.17 percentage points of symptom improvement to achieve one-percentage-point reduced risk of insomnia, nausea, anxiety, feeling jittery, and dry mouth, respectively. Centanafadine profile had consistently higher adjusted total utilities than its comparators. Similar results were obtained in the subgroup and sensitivity analyses. Efficacy was the most important attribute for patients when making treatment decision, but taken together, AEs had greater relative importance than efficacy alone. Accordingly, a profile resembling that of centanafadine would be preferred by an average patient compared to key competitors due to its favorable safety profile. These findings may help improve treatment decision-making, enhance treatment satisfaction, and foster adherence.

Protocol for a discrete choice experiment: understanding preferences for seeking health services for survivors of sexual violence in Uganda

IntroductionSexual violence is a significant public health concern with severe physical, social and psychological consequences, which can be mitigated by health service utilisation. However, in Uganda and much of sub-Saharan...

The effects of free prescriptions on community pharmacy selection: A discrete choice experiment

BackgroundLittle is known about preferences for community pharmacies, particularly the influence of prescription co-payments, and for New Zealand's priority populations, Māori and Pacific Peoples. Improving understanding of community pharmacy preferences will enable tailoring services to meet community needs. ObjectivesThis study aims to investigate New Zealanders’ preferences for community pharmacies when collecting prescriptions. Additionally, variations in preferences for community pharmacy attributes between different latent and demographic groups were examined. MethodsFocus group discussions with various community groups were thematically analyzed to develop six attributes: location, wait time, customer service, prescription co-payments, parking availability, and nearby businesses. Participants were asked to complete an online survey involving 12 choice tasks, where they had to choose their preferred option of 3 unlabeled pharmacies along with demographic questions. A mixed multinomial logit model and latent classes analysis were used to assess and compare the participant preferences. ResultsThe sample of 553 participants, representative of the New Zealand population, resulted in 19,908 observations for analysis. The most attractive pharmacy attribute was its proximity, being within a 10-min travel distance from home or work. The importance of prescription co-payments is evident, with free prescriptions being the second most attractive attribute level and $15 NZD prescription co-payments being the least appealing. Different classes placed importance on different attributes, the largest of which prioritized prescription co-payments. Including demographic characteristics did not improve model accuracy nor predict class membership. ConclusionsUnder current policy, the most effective way for pharmacies to attract business is by offering free prescriptions. However, the trend of adopting lower-cost models may reduce the quality of care they deliver. Policy decision-makers must decide if they are comfortable with this potential impact.

Unravelling Elements of Value of Healthcare and Assessing their Importance Using Evidence from Two Discrete-Choice Experiments in England.

Health systems are moving towards value-based care, implementing new care models that allegedly aim beyond patient outcomes. Therefore, a policy and academic debate is underway regarding the definition of value in healthcare, the inclusion of costs in value metrics, and the importance of each value element. This study aimed to define healthcare value elements and assess their relative importance (RI) to the public in England. Using data from 26 semi-structured interviews and a literature review, and applying decision-theory axioms, we selected a comprehensive and applicable set of value-based elements. Their RI was determined using two discrete choice experiments (DCEs) based on Bayesian D-efficient DCE designs, with one DCE incorporating healthcare costs expressed as income tax rise. Respondent preferences were analysed using mixed logit models. Six value elements were identified: additional life-years, health-related quality of life, patient experience, target population size, equity, and cost. The DCE surveys were completed by 402 participants. All utility coefficients had the expected signs and were statistically significant (p<0.05). Additional life-years (25.3%; 95% confidence interval [CI] 22.5-28.6%) and patient experience (25.2%; 95% CI 21.6-28.9%) received the highest RI, followed by target population size (22.4%; 95% CI 19.1-25.6%) and quality of life (17.6%; 95% CI 15.0-20.3%). Equity had the lowest RI (9.6%; 95% CI 6.4-12.1%), decreasing by 8.8 percentage points with cost inclusion. A similar reduction was observed in the RI of quality of life when cost was included. The public prioritizes value elements not captured by conventional metrics, such as quality-adjusted life-years. Although cost inclusion did not alter the preference ranking, its inclusion in the value metric warrants careful consideration.

Comparing individual and collective valuation of ecosystem service tradeoffs: A case study from montane forests in southern California, USA

Accounting for the tradeoffs and importance urban, disadvantaged communities place on ecosystem services has implications for the management of nearby forests. Although stated preference valuation approaches are often used, they are based on an individual’s perspective and rarely account for collective or societal values. Thus, alternative methods are needed to capture this dichotomy from urban communities who may not even be aware of these benefits to themselves or society at-large. We explored individual and collective importance of, and tradeoffs for, ecosystem services (ES) and ecosystem disservices (ED) by urban residents living near montane forests in greater Los Angeles, California, USA. Using an online panel survey, individual (I-rationality) versus collective (We-rationality) scenarios, best-worst scaling (BWS) choice experiments, and latent class analyses, we ranked the importance and tradeoffs among ES-ED attributes tonearby residents based on the frequency of visits to montane forests as well as Hispanic ethnicity. Results show statistically significant tradeoffs and differences in importance rankings between individual versus collective valuation scenarios. Under the individual valuation scenario, non-Hispanics highly ranked the high forest density indicator, which has implications for wildfire EDs to montane forests and communities. Gender and income were more influential sociodemographic factors affecting importance for water and recreation-related ES than was education. Our BWS and econometric methods, attributes, and importance rankings can facilitate participatory processes with diverse urban communities and designing more effective policies and management guidelines. This approach canalso more inclusively, and equitably, account for the tradeoffs and values that nearby urban communities place on ES/ED from Wildland-Urban Interface forests.

Tradeoffs and decision-making in moderate to severe psoriasis for oral versus injectable treatments: data from patients and dermatologists in Australia

Background Oral systemic and injectable biologic treatments are available in Australia to treat moderate to severe psoriasis. Objective To examine how patients and dermatologists in Australia choose between oral and injectable treatments for psoriasis. Methods In this discrete choice experiment (DCE), adults with moderate to severe psoriasis and dermatologists were asked to choose between 2 treatments labeled by mode of administration (‘oral’ or ‘subcutaneous injection’), each with randomly assigned levels for 9 treatment attributes. Needle fear was rated by patients. Results Completed surveys from 178 patients and 43 dermatologists were included in the analysis. Symptom reduction, safety, and mode of administration were attributes found to have a significant impact on treatment choice; dosing frequency was a significant attribute for the injectable option. When treatment attributes were held equal, patients and dermatologists preferred oral versus injectable treatments for moderate disease. Patients with higher levels of needle fear were more likely to favor an oral treatment versus patients with lower levels of needle fear. Limitations Participation bias may limit the generalizability of these findings. Conclusion Participants preferred oral over injectable treatment for moderate psoriasis. These findings corroborate the need for efficacious oral therapies to treat the disease.

Public preferences for policies promoting the conservation of a universally threatened species (Anguilla spp.): Insights from a choice experiment in Japan

The population of the Northern temperate eel species (Anguilla spp.) has undergone a significant decline, resulting in their classification as Endangered (American eel Anguilla rostrata and Japanese eel Anguilla japonica) or Critically Endangered (European eel Anguilla anguilla) by the IUCN. The growing global demand for Japanese cuisine and processed eel products could potentially exacerbate the vulnerability of these species. This research examines the acceptability of conservation policies among Japanese consumers. A discrete choice experiment was employed to investigate the social acceptance of target levels for national eel consumption reduction and to examine the trade-offs made by individuals between various policy instruments (e.g., combat against illegal trade, research on artificial reproduction, shift to substitute species, public awareness campaigns, eco-labelling) and the costs that they may be willing to incur. The econometric analysis identified two distinct groups with contrasting preferences. The first group exhibited strong support for the current situation. Conversely, the second group expressed preferences for expanding public intervention. We further explored the sources of heterogeneity. Paradoxically, we found that education attainment and environmental knowledge in relation to consumption motivations influenced individual preferences for the status quo. However, individuals with higher pro-environmental attitudes are more likely to accept a national target of consumption reduction. They are willing to pay for demand-oriented policy instruments to complement existing supply-side measures.

Assessing the American public’s preferences for reforms to teen driving licensure systems: a discrete choice experiment

ObjectivesTo analyse factors influencing the American public’s preferences for changes to teenage driver licensing requirements.MethodsWe employed a discrete choice experiment (DCE) with 808 participants from National Opinion Research Center’s AmeriSpeak...