Perspektif Preferensi Konsumen Remaja terhadap Jajanan Tradisional Khas Gresik

This study aims to explain the order of attributes of Gresik's traditional snacks based on the level of importance according to adolescent consumer preferences and the combination of Gresik's traditional snack product attribute levels, which are adolescent consumers' preferences Gresik Regency. The method used in determining the sample is purposive sampling. The respondents used were 55 teenagers who had made purchases and consumed snacks at least once. Location selection technique using the purposive method. This research was conducted from March 2021 to June 2021. Methods of data collection using closed questionnaires and case studies. The research data were analyzed using conjoint analysis with a combination of 7 attributes. Based on the study results, the order of attributes of Gresik's traditional snacks based on the level of importance according to adolescent consumer preferences was taste, brand, elasticity, price, product appearance, aroma, and packaging materials. The combination of the attribute levels of Gresik's traditional snacks that are the preferences of adolescent consumers in Gresik Regency is sweet to taste, very famous brand, sufficient elasticity, low price, attractive colour, medium characteristic aroma, and paper packaging material.

793 PATIENTS’ PREFERENCES FOR ACTIVE SURVEILLANCE OR STANDARD ESOPHAGECTOMY AFTER NEOADJUVANT CHEMORADIOTHERAPY: A DISCRETE CHOICE EXPERIMENT IN PATIENTS AFTER STANDARD ESOPHAGECTOMY

Active surveillance after neoadjuvant chemoradiotherapy for locally advanced resectable esophageal cancer is currently topic of investigation. In a discrete choice experiment, patients’ preferences can be quantified by asking patients to state their preference over hypothetical treatment alternatives. The aim of the present study was to assess patients’ preferences for either active surveillance or standard esophagectomy in patients who underwent neoadjuvant chemoradiotherapy followed by surgery without signs of recurrence. Methods A discrete choice experiment was performed in esophageal cancer patients who underwent neoadjuvant chemoradiotherapy followed by standard esophagectomy at least one year earlier. Patients completed a questionnaire consisting of eighteen choice sets considering active surveillance or standard esophagectomy. Treatment alternatives were characterized by attributes with varying attribute levels hypothesized to influence treatment choice: five-year survival, short-term and long-term health related quality of life (HRQOL), annual number of diagnostics required and the risk that esophagectomy is still necessary later in time. The importance of attributes and willingness to trade-off 5-year survival for other attributes were assessed using panel latent class model. Results A total of 107 patients were consecutively included, of whom 100 (93%) responded between August 2018 and October 2020. Regardless of the attribute levels, 28 patients preferred active surveillance and 28 patients preferred standard esophagectomy. When considering both treatments, five-year survival and long-term HRQOL were considered most important attributes. Patients were willing to trade-off 5.4% five-year overall survival to obtain a better long-term HRQOL. Conclusion At least one year after neoadjuvant chemoradiotherapy and esophagectomy, over a quarter of patients would choose not to undergo standard esophagectomy again, regardless of the attribute levels. Patients were willing to trade-off five-year survival chance in order to achieve an HRQOL which was much better than their own situation. When considering both treatments, five-year survival and long-term HRQOL were the most important determinants in the choice for treatment.

Preferences of Gastric Cancer Survivors for Follow-up Care---A Multicenter Discrete Choice Experiment Study

Purposes: The purposes of this discrete choice experiment are as follows:1.To investigate the preference of gastric cancer survivors for follow-up care.2.To quantify the importance of follow-up care-related characteristics that may affect the gastric cancer survivors’ choices of their follow-up, so as to provide references for development of the follow-up strategy of gastric cancer survivors.Methods: Discrete choice experimental design principles was applied to develop the survey instrument. All questionnaires were filled out by the respondents and collected on site. A mixed logit model was used to estimate gastric cancer survivors’ preferences. Willingness to pay estimates and simulations of follow-up uptake rates were calculated.Results: All six attributes are significant important for the follow-up care of gastric cancer survivors (p＜0.05). Achieving very thorough follow-up contents was the most valued attribute level (coefficient=1.995). Specialist doctors are the most preferred providers, followed by specialist nurses and gastric cancer survivors were willing to pay more for these attribute levels. Changes in attribute levels affected uptake rate of follow-up. When the multiple attribute levels were changed at the same time, a very thorough follow-up contents provided by the same specialist doctor (specialist nurse), the probability of receiving follow-up increases by 95.82% (94.90%).Conclusions: The characteristics of follow-up care in our study reflect the health management services expectations of gastric cancer survivors. A dedicated specialist nurse involved in follow-up care should be developed to contributes to solve the complex and multifaceted personal needs of gastric cancer survivors.

Economic Valuation of Local Environmental Amenities: A Case Study of Bahir Dar City, Amhara Regional State, Ethiopia

This study estimates the economic value of local environmental amenities in Bahir Dar city which is one of the tourist attraction sites in Ethiopia. The study employed choice experiment valuation method by identifying four environmental amenities attributes (Lake Tana, urban park, palm tree and street cleanliness). The study used probability multi-stage random sampling technique. The analysis was based on primary data surveyed from households in Bahir Dar city. The study presented nine choices set for each respondent; each choice set has three alternatives including the status quo option. The study employed a mixed logit model. The result showed that all improved attribute levels have positive signs and statistically significant. As expected and consistent with economic theory the monetary cost has negative signs and significant. The mixed logit model showed that there is preference heterogeneity in some attribute levels. Based on the finding, the study recommends that the city administration and the concerned body expected to implement the hypothetical policy scenario so as to improve environmental amenity.

Consumer Preference for Attributes of Out & Jump Outer Products

This study aimed to identify the attributes that are considered most important for consumers of Out & Jump outer products. This research employed quantitative research using the conjoint method. The sample of 97 was recruited using purposive sampling. There were three attributes in purchasing an outer product that were studied, namely motif, arm design and fabric. Each attribute had several levels: the motif attribute levels were patterned and plain; the arm design attribute levels were the short arm design and the long arm design; and the fabric attribute levels were rayon fabric, maxmara fabric and chiffon fabric. The results indicated that the attributes that were considered the most important for potential consumers of Out & Jump were fabric and arm design, and the attribute that was considered less important was motif. Keywords: consumer preferences, product attributes, purchasing decision making

Evaluation of Prospective Users’ Choice Decision toward Electric Two-Wheelers Using a Stated Preference Survey: An Indian Perspective

Electric two-wheelers (E2W) can help de-carbonize transport in Indian cities. To promote E2W as an attractive alternative compared to the conventional two-wheelers, an investigation on prospective users’ choice decisions is necessary. This paper proposed a comprehensive methodology to evaluate the prospective users’ choice decision toward electric two-wheelers and related attributes in the Indian context. In this paper, attributes such as Operating Cost (OC) savings, top speed, range, charging duration, acceleration, and purchase cost were considered to design a Stated Preference (SP) survey to collect data from prospective E2W users in Hyderabad, India. Concurrently, multinomial logit (MNL) and random parameter logit (RPL) models are developed, and the willingness-to-pay (WTP) associated with each of the identified attributes was estimated. Additionally, the effect of socio-economic characteristics on prospective users’ choice decision was also assessed. Subsequently, a sensitivity analysis was carried out to estimate the relative influence of the attributes on an individual’s choice decision in terms of the shift in probability to choose alternatives with better attribute levels than the base alternative. The results revealed that top speed was perceived as the most important attribute influencing an individual’s choice decision, followed by acceleration and charging duration. Age, income, and journey time significantly influenced an individual’s perception toward E2W and related attributes in the Indian context.

National and Intergenerational Similarities and Differences in Stated Preferences

In this chapter, the authors provide results from their examination of family member preferences—the linchpin between individual beliefs and attitudes and individual behaviors. They describe their stated preference experiment including the defining of choice attributes, the assignment of attribute levels, the creation of choice scenarios and choice sets, and the estimation of individuals’ utility differences on these sets using conditional logistic regression. Focusing on preference for job type, they find significant differences across countries and between generations on job choice. While in Sweden, high value is placed in jobs that require soft skills like teamwork and cooperation, in Italy and India, extrinsic values like salary and security are critical. Generational effects are also evident with millennials expressing significant disutility for jobs requiring math skills or using a second language.

Is Easier Better Than Harder? An Experiment on Choice Experiments for Benefit-Risk Tradeoff Preferences

Objectives To test the convergent validity of simple and more complex study designs in a discrete-choice experiment (DCE) of multiple sclerosis (MS) treatment preferences. Methods Five hundred US adults with MS completed an online DCE survey. Respondents answered 8 choice questions with pairs of constructed MS treatment profiles defined by delays in problems with walking, delays in problems with cognition, thyroid disorders, and 10-y risks of kidney failure and serious brain infection (i.e., progressive multifocal leukoencephalopathy [PML]). Four hundred respondents completed choice questions using 4 levels for all attributes, except thyroid disorders with 3 levels. One hundred respondents completed choice questions using only the 2 extreme attribute levels of the 4-level version. Random-parameters logit models were used to estimate choice-model parameters. Results Respondents viewing the 4-level and 2-level versions agreed on the relative importance of the 3 most important attributes: cognition, walking, and PML. Respondents viewing the 4-level version indicated much stronger disutility for a 0% to 0.5% increase in kidney-failure risk than those viewing the 2-level version where the risk for kidney failure increased from 0% to 3%. Otherwise, utilities for other 4-level attributes were approximately linear but with significantly steeper slopes (except for cognition) than the 2-level estimates, indicating that attributes were perceived as more important as the number of levels increased. Conclusions Although the relative importance of some attributes was similar, the 2-level and 4-level versions generally failed to demonstrate convergent validity. If the study goal is attribute rankings, a 2-level version could be adequate. If goals include quantifying tradeoffs among attribute levels, more complex designs can help respondents discriminate among attribute levels. Reductions in measurement error using fewer attribute levels appear to have come at the expense of less discriminating evaluations.

Factors contributing to clinically important health utility gains in cochlear implant recipients

Purpose Cochlear implantation can restore access to sound and speech understanding in subjects with substantial hearing loss. The Health Utilities Index Mark III (HUI3) measures the impact of an intervention on the patient’s quality of life and is sensitive to changes in hearing. In the current study we used factor analysis to predict a clinically important gain in HUI3 scores in adult cochlear implant recipients. Methods Data were collected in an observational study for 137 adult recipients from a single center who had at least 1-year HUI3 follow-up. Demographic and other baseline parameters were retrospectively analyzed for their association with a clinically important HUI3 scale gain, defined as at least 0.1 points. Data were also collected for the speech spatial qualities (SSQ) scale. Results Baseline telephone use and HUI3 hearing, speech and emotion attribute levels were significantly associated with clinically important gains in HUI3 scores. However, SSQ scores increased significantly with or without clinically important HUI3 gains. Conclusion Those subjects who were unhappy or experienced difficulties communicating with strangers or in a group were twice as likely to obtain a clinically important gain in health utility compared to those who were happy or had less difficulty communicating. Subjects who were unable to use the telephone prior to cochlear implantation were one and a half times more likely to obtain a clinically important gain. The SSQ scale was more sensitive to hearing improvements due to cochlear implantation. An inability to use the telephone is an easy to assess biomarker for candidacy for cochlear implantation.

A qualitative study to identify critical attributes and attribute-levels for a discrete choice experiment on oral pre-exposure prophylaxis (PrEP) delivery among young people in Cape Town and Johannesburg, South Africa

Background The uptake and adherence of daily oral PrEP has been poor in high-risk populations in South Africa including young people. We used qualitative research methods to explore user preferences for daily and on-demand oral PrEP use among young South Africans, and to inform the identification of critical attributes and attribute-levels for quantitative analysis of user preferences, i.e. a discrete choice experiment (DCE). Methods Data were collected between September and November 2018 from eight group discussions and 20 in-depth interviews with young people 13 to 24 years in Cape Town and Johannesburg. Using a convenience sampling strategy, participants were stratified by sex and age. Interviewers used a semi-structured interview guide to discuss several attributes (dosing regimen, location, costs, side effects, and protection period) for PrEP access and use. Group discussions and in-depth interviews were audio-recorded, transcribed verbatim and translated to English. We used framework analysis to explore context-specific attributes and attribute-levels for delivering oral PrEP in South Africa. The adolescent community advisory board, expert and study team opinions were consulted for the final DCE attributes and levels. Results We enrolled 74 participants who were 51% (n = 38/74) male, had a median age of 18.5 [Interquartile range = 16–21.25] years, 91% (n = 67/74) identified as heterosexual and 49% (n = 36/74) had not completed 12th grade education. Using the qualitative data, we identified five candidate attributes including (1) dosing regimen, (2) location to get PrEP, (3) cost, (4) route of administration and (5) frequency. After discussions with experts and the study team, we revised the DCE to include the following five attributes and levels: dosing regime: daily, and on-demand PrEP; location: private pharmacy, public clinic, mobile clinic, ATM); cost: free-of-charge, R50 (~2GBP), R265 (~12GBP); side effects: nausea, headache, rash; and duration of protection: fulltime protection versus when PrEP is used). Conclusions There is limited literature on qualitative research methods describing the step-by-step process of developing a DCE for PrEP in adolescents, especially in resource-constrained countries. We provide the process followed for the DCE technique to understand user preferences for daily and on-demand oral PrEP among young people in South Africa.