This study tests the stability of environmental preferences and willingness to pay (WTP) values using a discrete choice experiment (DCE) across three countries pre and post the peak of the first wave of the Covid-19 pandemic. A DCE examining the public's preferences for alternative environmental management plans on the high seas, in the area of the Flemish Cap, was carried out in Canada, Scotland and Norway in late 2019 and was rerun in early May 2020 shortly after the Covid-19 pandemic had officially peaked in the three countries. The same choice set sequence is tested across the two periods, using different but nationally representative samples in each case. Entropy balancing, a multivariate reweighting method, is used to achieve covariate balance between the pre and post Covid samples in the analysis. The results suggest that both preferences and WTP remain relatively stable in the face of a major public health crisis and economic upheaval.

本研究使用离散选择实验 (DCE) 在第一波 Covid-19 大流行高峰前后的三个国家测试环境偏好和支付意愿 (WTP) 值的稳定性。DCE 于 2019 年底在加拿大、苏格兰和挪威开展了一项 DCE，旨在检查公众对佛兰芒海角公海替代环境管理计划的偏好，并在 Covid-19 大流行后不久于 2020 年 5 月初重新开展已经在三个国家正式达到顶峰。在两个时期测试相同的选择集序列，在每个案例中使用不同但具有全国代表性的样本。熵平衡是一种多元重加权方法，用于在分析中实现 Covid 前后样本之间的协变量平衡。