近日，北京大学经济学院秦雪征教授的合作论文“Quarter of Birth, Gender Inequality, and Economic Development（出生季度、性别不平等与经济发展）”被劳动经济学领域顶级期刊Journal of Labor Economics接收。论文合作者为北京大学国家发展研究院易君健教授和浙江大学经济学院 ...

A drone photo shows plant protection drones conducting spraying operations in the wheat fields of Houshuangqiu Village of Qingdao, east China's Shandong province, May 6, 2026. [Photo/Xinhua] The ...