Publications by authors named "Hongshan Ai"

We examine the effects of nitrogen fertilizer application on air pollution in China. Distinct from the existing literature that tends to utilize field sampling method, we construct a comprehensive panel dataset and discover that 1 g nitrogen increase in fertilizer correlates with a rise of 0.55 μg/m³ in PM concentrations.

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The authors and journal retract the following article: "The Effects of Environmental Regulations on Medical Expenses: Evidence from China" [...

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Environmental regulation restricts corporate pollution emissions and affects corporate investment decisions and asset allocation. Based on the data of A-share listed enterprises in China from 2013 to 2021 and the difference in differences (DID) model, this paper identifies the impact of environmental regulation on corporate financialization with the help of the "Blue Sky Protection Campaign (2018-2020)" (BSPC) of China. The results indicate that environmental regulation has a crowding-out effect on corporate financialization.

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This paper investigates the long-run effects of PM exposure in utero on the mental health of adolescents. Using nationally representative survey data from China, we instrument the PM exposure with wind speed to tackle the possible endogeneity problem. Our results show that mothers' PM exposure during their pregnancy negatively affects the mental health of their children aged between 10 and 15 years.

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This paper estimates the impact of destination cities' temperature on the migration intentions of highly educated talents. Using a unique manually collected dataset of applicants for the Unified National Graduate Entrance Examination (UNGEE) of double first-class universities in China, we find that both hot (over 25 °C) and cold (below 5 °C) days in the previous 3 months before the registration date significantly decrease the number of applicants for the UNGEE of double first-class universities, relative to a moderate (20-25 °C) day. Heterogeneity analysis shows that such effects differ by destination universities' quality and climate regions.

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In this study, we examine the effects of a special period regulation (SPR), implemented in the Chang-Zhu-Tan (Changsha City, Zhuzhou City, and Xiangtan City; CZT) region, regarding medical expenses paid by the Urban and Rural Resident Basic Medical Insurance (URRBMI) and Urban Employee Basic Medical Insurance (UEBMI) programs, using a difference-in-differences (DID) design. We find that the SPR significantly reduces medical expenses in the CZT region, which appears to be driven by improved air quality. Furthermore, this regulation has a significantly negative and positive impact on medical expenses paid by the UURBMI and UEBMI, respectively.

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Article Synopsis
  • - The COVID-19 pandemic led to significant economic fluctuations, with a study in Hunan province, China, showing a 27.8% drop in electricity consumption, particularly affecting manufacturing and transportation sectors during the early phases.
  • - The research utilized a difference-in-differences (DID) model to gauge the pandemic's economic impact, noting a recovery in electricity use as the virus was brought under control.
  • - To counter the pandemic's repercussions, it's recommended that government actions focus on preventing future outbreaks, supporting affected industries, and investing in digital transformation, including advancements in Internet and 5G technology.
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Based on the idea of a "Community of Human Destiny," the Chinese government proposed the "Belt and Road" initiative, and clearly proposed to promote green development and strengthen ecological environmental protection. However, a considerable number of countries are resource-rich economies with serious market misallocations. Using the stochastic frontier analysis (SFA) combined with the directional distance function (DDF) framework, this paper measures the green total factor productivity (GTFP) and its items (i.

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This study examined the moderator effect of psychological resilience on the relationship between social support and loneliness of the "left-behind" children. A total of 200 left-behind girls and 214 left-behind boys completed the measures of psychological resilience, social support, and loneliness. Hierarchical regression analysis showed that psychological resilience moderated the association between social support and loneliness.

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There is a trend of rapid growth in both the level and occurrence of depression when people reach adolescence. The present study aimed to investigate the impact of the parent-adolescent relationship on depression in adolescents, and mainly focused on the confirmation of the mediator role of self-esteem. A total of 364 senior middle school students accomplished the Parent-Adolescent Relationship Scale, Rosenberg Self-Esteem Scale, and Zung Self-Rating Depression Scale.

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