【題  目】Information Provision and Halo Effect of Food Labels: What Can Response Time Tell?

【時(shí)  間】2025年11月26日（星期三），14:00-15:30

【地  點(diǎn)】后主樓1710會(huì)議室

【主講人】范肖麗 副教授（加拿大阿爾伯塔大學(xué)資源經(jīng)濟(jì)與環(huán)境社會(huì)學(xué)系）

【主持人】李亞男 副教授（北京師范大學(xué)經(jīng)濟(jì)與工商管理學(xué)院）

摘要：

The halo effect of food labels occurs when labels lead consumers to infer superior health or quality attributes, especially for credence claims that cannot be directly verified, such as organic, grass fed, or animal welfare approved. Evidence on whether information provision mitigates this bias remains mixed. Using a nationally representative Canadian survey with an embedded discrete choice experiment, we examine whether information about beef label requirements reduces the halo effect and whether incorporating response time affects model estimates. Half of the participants were randomly assigned to receive detailed label information, and response times were recorded for all choice tasks. We estimate a hybrid choice model that integrates discrete choice models with latent variable models, in which response time is incorporated as the observable indicator of the latent construct for survey engagement. Our model allows taste and scale heterogeneity to be separated while avoiding endogeneity concerns present in models that directly use response time as an explanatory variable. Our results show that information provision reduces the halo effect, and that longer response times, which indicate greater cognitive effort, are associated with lower willingness to pay for credence labels. These findings suggest that more deliberate processing helps mitigate the halo effect of food labels.

報(bào)告人簡介：

范肖麗現(xiàn)任加拿大阿爾伯塔大學(xué)資源經(jīng)濟(jì)與環(huán)境社會(huì)學(xué)系副教授。她于 2017 年在美國康奈爾大學(xué)獲得應(yīng)用經(jīng)濟(jì)學(xué)博士學(xué)位，在農(nóng)業(yè)經(jīng)濟(jì)、消費(fèi)者行為、農(nóng)業(yè)技術(shù)采用以及畜牧業(yè)可持續(xù)發(fā)展等領(lǐng)域取得突出的學(xué)術(shù)成果。其研究成果多次發(fā)表在American Journal of Agricultural Economics、Food Policy、Canadian Journal of Agricultural Economics等農(nóng)業(yè)經(jīng)濟(jì)領(lǐng)域權(quán)威期刊，以及Nature Human Behavior、Nature Scientific Data等跨領(lǐng)域高影響力期刊。范教授在學(xué)術(shù)服務(wù)中也做出了重要貢獻(xiàn)，曾于2021-2024年擔(dān)任加拿大農(nóng)業(yè)經(jīng)濟(jì)學(xué)會(huì)理事，現(xiàn)擔(dān)任Agribusiness: An International Journal期刊副編輯（Associate Editor）和Canadian Journal of Agricultural Economics期刊編委會(huì)成員（Editorial Board Member）。