Summary What is already known about this topic?Migration has a significant impact on the transmission of human immunodeficiency virus(HIV).To date,there have been few studies examining the characteristics of migration...Summary What is already known about this topic?Migration has a significant impact on the transmission of human immunodeficiency virus(HIV).To date,there have been few studies examining the characteristics of migration among HIV-positive men who have sex with men(MSM).What is added by this report?The prevalence of migrants among newly reported HIV-positive MSM in Guangxi Zhuang Autonomous Region increased from 2005 to 2021.Yulin Prefecture had the highest proportion of out-migrant MSM(12.6%),while Nanning Prefecture had the highest proportion of in-migrant MSM(55.9%).Risk factors associated with migration among MSM included being in the 18–24 age range,having a college education or higher,and being a student.展开更多
This study revisits the question of“whether firms are doing well by doing good?”.We examine shareholders-sponsored corporate socially responsible(CSR)proposals related to Environmental,Social,and Governance(ESG)that...This study revisits the question of“whether firms are doing well by doing good?”.We examine shareholders-sponsored corporate socially responsible(CSR)proposals related to Environmental,Social,and Governance(ESG)that are voted to pass or fail by a small margin.The adoption of those“close call”proposals is regarded as equivalent to a random assignment of CSR policies and,therefore,provides a quasi-experimental setting to capture the causal influence of CSR on firm performance.We apply the regression discontinuity design(RDD)and find that CSR proposals’passage leads to a significant positive abnormal return on the voting day.The results are robust with both parametric and nonparametric approaches of RDD and different polynomial orders.However,we fail to identify a significant change in financial performance in the long-term.One possible reason is that passing a CSR proposal could be symbolic,rather than substantial.展开更多
基金The National Natural Science Foundation of China(82160636).
文摘Summary What is already known about this topic?Migration has a significant impact on the transmission of human immunodeficiency virus(HIV).To date,there have been few studies examining the characteristics of migration among HIV-positive men who have sex with men(MSM).What is added by this report?The prevalence of migrants among newly reported HIV-positive MSM in Guangxi Zhuang Autonomous Region increased from 2005 to 2021.Yulin Prefecture had the highest proportion of out-migrant MSM(12.6%),while Nanning Prefecture had the highest proportion of in-migrant MSM(55.9%).Risk factors associated with migration among MSM included being in the 18–24 age range,having a college education or higher,and being a student.
文摘This study revisits the question of“whether firms are doing well by doing good?”.We examine shareholders-sponsored corporate socially responsible(CSR)proposals related to Environmental,Social,and Governance(ESG)that are voted to pass or fail by a small margin.The adoption of those“close call”proposals is regarded as equivalent to a random assignment of CSR policies and,therefore,provides a quasi-experimental setting to capture the causal influence of CSR on firm performance.We apply the regression discontinuity design(RDD)and find that CSR proposals’passage leads to a significant positive abnormal return on the voting day.The results are robust with both parametric and nonparametric approaches of RDD and different polynomial orders.However,we fail to identify a significant change in financial performance in the long-term.One possible reason is that passing a CSR proposal could be symbolic,rather than substantial.
