网络食物沼泽：探究线上到线下食品配送平台对健康食品选择的影响
Cyber Food Swamps: Investigating the Impacts of Online-to-Offline Food Delivery Platforms on Healthy Food Choices
AI总结：
本研究利用大规模实证数据分析了O2O食品配送平台的线上食品环境对健康选择的影响，发现扩展服务范围会形成更大的“网络食物沼泽”，显著增加用户订购快餐的概率，并证实了其长期的因果效应。
摘要：
线上到线下（O2O）食品配送平台通过允许用户便捷地从遥远的食品门店订餐，极大地拓宽了城市居民获取各种食品选择的途径。然而，人们对配送食品的营养质量仍存在担忧，特别是由于O2O食品配送平台对用户健康食品选择的影响尚不明确。本研究利用一家领先的O2O配送平台的大规模实证数据，全面分析了线上食品选择行为及其如何受到快餐店线上曝光（即线上食品环境）的影响。我们的分析揭示了不同人口群体和城市规模之间在食品偏好上的显著差异，其中男性、低收入和年轻用户更倾向于通过O2O平台订购快餐。此外，我们还对线下和线上环境中的食品曝光差异进行了比较分析，证实了O2O平台扩展的服务范围能够创造更大的“网络食物沼泽”。此外，回归分析强调，较高的快餐订单比例与“网络食物沼泽”相关，这些区域的特征是可访问的快餐店比例较高。该比例每增加10%，订购快餐的概率就会提高22.0%。此外，一项准自然实验证实了线上食品环境变化对健康食品选择的长期因果效应。这些发现强调了O2O食品配送平台需要解决线上食品选择曝光对健康的影响，为旨在改善城市居民饮食健康的利益相关者提供了重要见解。
英文摘要：
Online-to-offline (O2O) food delivery platforms have greatly expanded urban residents' access to a wide range of food options by allowing convenient ordering from distant food outlets. However, concerns persist regarding the nutritional quality of delivered food, particularly as the impact of O2O food delivery platforms on users' healthy food remains unclear. This study leverages large-scale empirical data from a leading O2O delivery platform to comprehensively analyze online food choice behaviors and how they are influenced by the online exposure to fast food restaurants, i.e., online food environment. Our analyses reveal significant variations in food preferences across demographic groups and city sizes, where male, low-income, and younger users are more likely to order fast food via O2O platforms. Besides, we also perform a comparative analysis on the food exposure differences in offline and online environments, confirming that the extended service ranges of O2O platforms can create larger "cyber food swamps". Furthermore, regression analysis highlights that a higher ratio of fast food orders is associated with "cyber food swamps", areas characterized by a higher proportion of accessible fast food restaurants. A 10% increase in this proportion raises the probability of ordering fast food by 22.0%. Moreover, a quasi-natural experiment substantiates the long-term causal effect of online food environment changes on healthy food choices. These findings underscore the need for O2O food delivery platforms to address the health implications of online food choice exposure, offering critical insights for stakeholders aiming to improve dietary health among urban populations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
