《人口与发展》是由北京大学主办、北京大学人口研究所承办的全国中文核心期刊、中国人文社会科学核心期刊。20年来,杂志坚持高水平办刊宗旨,立足学术前沿,鼓励学术创新,为人口与发展领域提供了优秀学术交流平台。杂志自创办起,一直依靠人口所自筹经费维持。近年来,办刊费用大幅增加,此外,遵守国家财务严格要求,杂志不可能继续依靠人口所的项目结余来运转。为能保证杂志的正常运作,依据国家期刊管理收费规定并参考其他杂志的收费办法,报请学校主管部门批准,《人口与发展》杂志向一直以来支持我刊的作者和读者正式告知:本刊从2015年第2期起,对2014年 “Population and Development” is a national Chinese core journal sponsored by Peking University and hosted by the Peking University Population Research Institute. It is the core journal of humanities and social sciences in China. In the past 20 years, the magazine has adhered to the principle of carrying out high-level publications, based on academic frontiers and encouraged academic innovation, and provided an excellent platform for academic exchanges in the fields of population and development. Since its creation, the magazine has always relied on the funds raised by the population to maintain. In recent years, there has been a substantial increase in the cost of running magazines. In addition, it is impossible for the magazines to continue to rely on the population balance of their projects to comply with the strict requirements of the state finance. In order to ensure the normal operation of the magazine, according to the regulations of the state administration for the administration of fees and with reference to the charging methods of other magazines, the application shall be submitted to the school authorities for approval. The magazine Population and Development officially announces to the authors and readers who have always supported my journal: 2015, No. 2, 2014