Multinomial Logit Models with Continuous and Discrete Individual Heterogeneity in <i>R</i>: The <b>gmnl</b> Package

Sarrias, Mauricio; Daziano, Ricardo A.

doi:10.18637/jss.v079.i02

Cited by 168 publications

(98 citation statements)

References 40 publications

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“…14 However, unlike Xuan et al (2017), our model here includes interaction effects between coral cover and environmental quality as well as between coral cover and job loss variables. 15 The MXL model is estimated in R using the "gmnl"-package (Sarrias & Daziano, 2016) and 1000 standard Halton draws.…”

Section: Tourism Value V(m)mentioning

confidence: 99%

Trading Off Tourism for Fisheries

Xuan

Armstrong

2018

Environ Resource Econ

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This paper presents a deterministic bioeconomic model in which the creation of a marine protected area (MPA) is not only a fisheries management tool but also introduced in order to provide tourism amenity benefits. The theoretical model is illustrated with analysis of the Nha Trang Bay (NTB) MPA in Khanh Hoa province in Vietnam, where the anchovy purse seine fishery is considered.An amenity value function of the NTB MPA is estimated from a discrete choice experiment (DCE) among national tourists. A weighting parameter is added to the bioeconomic model to allow the establishment of a tradeoff between management preferences regarding the two sectors affected by the MPA, fisheries and tourism. Both the theoretical models and the empirical application show how the added amenity values affect optimal fishing practices as well as the identification of the optimal MPA size. Our applied analysis shows that contrary to the argument in most MPA studies with multiple stakeholders, the current management practice in Khanh Hoa prioritizes the fisheries sector heavily compared to tourism, despite high economic cost.

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Section: Tourism Value V(m)mentioning

confidence: 99%

Trading Off Tourism for Fisheries

Xuan

Armstrong

2018

Environ Resource Econ

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“…We use the BIC criteria for choosing the number of latent classes, which is the most conservative criteria in that it penalizes the most for additional parameters (Morey and Thacher, 2012). The latent class models were estimated using the package gmnl (Sarrias & Daziano, 2015) of the R Development Core Team.…”

Section: Samplementioning

confidence: 99%

Product attributes and consumer attitudes affecting the preferences for infant milk formula in China – A latent class approach

Benni

Stolz

Home

et al. 2019

Food Quality and Preference

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A series of food safety incidents has led to low levels of trust in the safety of domestically produced Chinese infant milk formula. Concerned parents in China increasingly source 'foreign-produced' brands and use a range of authenticity cues as assurance of the safety and authenticity of infant formula products. However, the effectiveness of authenticity cues in providing assurance to Chinese consumers has not been evaluated. The aim of this study is to analyse the importance of various authenticity cues for infant milk product choices. Latent class models were used to analyse responses to an online choice experiment with 350 consumers of European infant formula in three Chinese cities: Beijing, Guangzhou and Chengdu. The model included respondents' preferences for different labels, authenticity cues and price along with perceptions, attitudes, and socio-demographic characteristics. We identified two consumer segments, with one preferring lower priced infant formula and the second choosing higher priced products. All authenticity cues, including price, appear to serve as indicators of food quality and safety, and all were found to be highly important information sources for the respondents when making purchase decisions. In general, Chinese consumers are prepared to pay a premium for authenticity assurance. Chinese policy makers and the infant formula industry should continue to improve quality control systems to increase consumers' trust in food value chains. These control systems should comprise the whole food supply chain, from production to marketing, and should focus on building trust and communicating credibility.

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“…Finally, following previous research where a betweensubject treatments approach was implemented (e.g., Alemu & Olsen, 2018;Bazzani et al, 2017;de-Magistris, Gracia, & Nayga, 2013;Lin, Ortega, & Caputo, 2018), we ran pooled models using responses from control and treatment group pairs as a robustness test of the impact of information on mWTP formation. All models were estimated using functions from the "gmnl" package for R (Sarrias & Daziano, 2017).…”

Section: Econometric Analysis Of Rcementioning

confidence: 99%

Do consumers value hydroponics? Implications for organic certification

Gilmour

Bazzani

Nayga

et al. 2019

Agricultural Economics

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Recent controversy about the inclusion of hydroponics in the U.S. Department of Agriculture (USDA) organic program has highlighted uncertainty about marketing hydroponic crops. In a controversial vote in November 2017, the National Organic Standards Board chose not to recommend that hydroponic farms be banned from organic certification. It is still unclear, however, how consumers perceive and value hydroponic production. This study used a nonhypothetical choice experiment to estimate consumers' willingness to pay for hydroponic and traditional lettuce both with and without organic certification. No hydroponic premium was found, but exposing consumers to different kinds of information about hydroponics significantly affected consumers' preference formation. Findings generally suggest that the National Organic Program should consider ways to ensure the stability of organic premiums as perceptions about hydroponics evolve. K E Y W O R D Shydroponics, information effect, nonhypothetical choice experiment, organic, WTP

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Multinomial Logit Models with Continuous and Discrete Individual Heterogeneity in R: The gmnl Package

Cited by 168 publications

References 40 publications

Trading Off Tourism for Fisheries

Trading Off Tourism for Fisheries

Product attributes and consumer attitudes affecting the preferences for infant milk formula in China – A latent class approach

Do consumers value hydroponics? Implications for organic certification

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