@article{li_wu_xu_2024, title={The impact of industrial sulfur dioxide emissions regulation on agricultural production in China}, volume={124}, ISSN={["1096-0449"]}, DOI={10.1016/j.jeem.2024.102939}, abstractNote={When environmental regulations do not explicitly target agriculture, it becomes difficult to predict if and how this sector will react. In this study, we delve into this issue by scrutinizing China's flagship program designed to control industrial sulfur dioxide emissions. We employ the difference-in-difference method to analyze extensive agricultural data, quantifying the policy's impact on agriculture from both the intensive and extensive margins. Our results indicate that the policy led to an approximately 9% increase in agricultural value added. This growth mainly stemmed from shifts in land allocation and subsequent changes in fertilizer use, rather than from crop yield improvements. Variations in composite grain yields occurred due to shifts in the crop mix, not from yield improvements in specific crops. Overall, our study found that the policy boosted rural per capita net income by 11.6%.}, journal={JOURNAL OF ENVIRONMENTAL ECONOMICS AND MANAGEMENT}, author={Li, Pei and Wu, Junjie and Xu, Wenchao}, year={2024}, month={Mar} } @article{wu_segerson_wang_2023, title={Is environmental regulation the answer to pollution problems in urbanizing economies?}, volume={117}, ISSN={["1096-0449"]}, DOI={10.1016/j.jeem.2022.102754}, abstractNote={This paper seeks to better understand the persistent environmental problems in urbanizing economies. We examine the effectiveness of environmental policy in an economy with agglomeration economies and endogenous firm relocation and entry/exit. We show that, although environmental regulation is effective in the short run, in the presence of agglomeration economies, spatial relocation of firms in response to environmental regulation can undermine the effectiveness of regulations, rendering them less effective or even ineffective. In fact, we show that regulation might even be counter-productive, i.e., exacerbate environmental problems, at certain stages of development. We present initial empirical evidence in the context of water pollution in China that demonstrates the importance of agglomeration economies in determining the impacts of environmental regulation.}, journal={JOURNAL OF ENVIRONMENTAL ECONOMICS AND MANAGEMENT}, author={Wu, JunJie and Segerson, Kathleen and Wang, Chunhua}, year={2023}, month={Jan} } @article{cai_wu_xu_zhu_2023, title={Negative emotions increase unhealthy eating: Evidence from the Wuhan lockdown during COVID-19}, ISSN={["1099-1050"]}, DOI={10.1002/hec.4790}, abstractNote={Abstract}, journal={HEALTH ECONOMICS}, author={Cai, Xiqian and Wu, Junjie and Xu, Wenchao and Zhu, Jialiang}, year={2023}, month={Dec} } @article{wu_yu_oueslati_2023, title={Open Space in US Urban Areas: Where Might There Be Too Much or Too Little of a Good Thing?}, volume={10}, ISSN={["2333-5963"]}, DOI={10.1086/721756}, abstractNote={The considerable variations in the share of open space across US cities raise two questions: What determines the optimal amount of open space in an urban area? Is the existing amount socially optimal? To address these questions, we first process data to measure the amount of natural, preserved, and developable open space in US metropolitan areas. We then develop a framework to characterize the optimal amount of open space in an urban area. This framework reveals that the geography-imposed land scarcity, price elasticities of housing demand and supply, economies of scale in municipal services provision, and marginal benefits from open-space conservation are the key parameters that determine the optimal amount of open space. By implementing the framework empirically, we find that most US metropolitan areas—97.39% according to our preferred model—have insufficient open space in their developed areas and additional open-space conservation in those areas will improve social welfare.}, number={2}, journal={JOURNAL OF THE ASSOCIATION OF ENVIRONMENTAL AND RESOURCE ECONOMISTS}, author={Wu, JunJie and Yu, Jialing and Oueslati, Walid}, year={2023}, month={Mar}, pages={315–352} } @article{dalhaus_wu_moehring_2023, title={Rapidly growing subsidization of crop insurance in Europe ignores potential environmental effects}, ISSN={["2055-0278"]}, DOI={10.1038/s41477-023-01569-9}, journal={NATURE PLANTS}, author={Dalhaus, Tobias and Wu, Junjie and Moehring, Niklas}, year={2023}, month={Nov} } @article{shi_wu_olen_2022, title={Impacts of climate and weather on irrigation technology adoption and agricultural water use in the US pacific northwest}, ISSN={["1574-0862"]}, DOI={10.1111/agec.12705}, abstractNote={Abstract}, journal={AGRICULTURAL ECONOMICS}, author={Shi, Jian and Wu, JunJie and Olen, Beau}, year={2022}, month={Mar} }