调节收入分配：个税真的无效吗？

基于一个包含财富异质性家户的动态新凯恩斯主义模型, 考察了个税及其累进性的变动对于中国收入差距的影响。 与已有的采用单方程计量的研究类似, 文章全样本仿真的结果表明, 个税并未扭转我国收入差距不断扩大的趋势。 由于单方程计量方法与全样本仿真无法考察政策机制的改变所引起的预期等因素的变化对于主要经济变量的影响, 采用子样本反事实分析法考察了 1997 至 2005 年、 2006 至 2010 年以及 2011 年之后等三个不同子样本期个税累进性的提高对于中国收入差距的影响, 研究发现尽管个税无法扭转收入差距扩大的趋势, 但是个税累进性的提高缓和了中国收入差距扩大的程度。 进而尝试提出了相应的改善收入分配的政策建议。     

水稻精简栽培模式对产量效益的影响

随着农村经济结构的调整,农村劳动力分配形式随之转变,从事农业生产的劳动力逐渐减少,水稻生产规模和生产方式出现了多样化,突出表现在水稻插秧方式的变革。对插秧效果、生育进程、抗逆性及产量效益进行调查分析,以便为今后推广应用提供理论和实践依据。     

THE IMPACT OF LABOR MARKET REGULATION ON EMPLOYMENT IN LOW‐INCOME COUNTRIES: A META‐ANALYSIS

Controversy over labor market policy often centers on achieving a balance between preventing worker exploitation, and avoiding loss of productivity or employment through excessive regulation. Although the literature documenting the impact of labor market regulation on employment is extensive, there is a dearth of evidence on the impact of such policies in low‐income countries (LICs). Since it is easier for workers, especially women, to slip into the informal sector in LICs, regulations are likely to have stronger impacts on formal employment in these countries (but lower impacts on unemployment). We systematically reviewed available research from countries that are, or were until recently, LICs. Most studies document that more stringent labor regulations are associated with lower formal sector employment and higher informal sector employment. We also conducted a metaregression analysis of the impact of minimum wages on formal and informal employment. After controlling for publication bias, higher minimum wages are associated with lower formal employment and a higher share of informal workers.     

农业科技信息服务平台运行模式研究——以湖南省星火科技12396服务平台为例

采取高效的运行方式是发挥农业科技信息服务平台效能的关键。文章以湖南省星火科技12396服务平台的运行实践为例,从农业信息平台的服务终端、服务方式、服务流程、服务规范等方面,对典型的农业科技信息服务平台运行模式进行了探索研究。     

What do scientists know about inflation hedging?

In this article, we give an overview of the state of scientific knowledge on inflation hedging. Specifically, we distill the results of several decades of research analysing the relationship between major asset classes (common stocks, gold, fixed income securities, real estate) and inflation. Even though previous studies have brought forth important facts characterising the interplay of asset returns and inflation rates (e.g., time-dependency, asymmetry, outlier-sensitivity and a tendency towards long-term but limited short-term inflation protection), there is still no consensus on the subject because sample, data and methodology issues preclude strict comparison of most studies. Thus, from a synthesis of the insights gained from our review, we also outline possible directions for future research that may help to establish consensus among researchers.     

试论2010年-2011年中国东北三省一盟地区医院业务收入的影响因素

研究2010年-2011年中国东北三省一盟地区医院业务收入的影响因素,对4地医院的门诊和住院收入变动建立因素指数体系并进行多因素分析法分析。4地医院业务收入均以住院收入为主,应加快推进基本药物制度,提高医保报销比例,推行临床路径,推进公立医院改革。     

城市扩展的两个均衡条件及其政策含义

论文认为中国的快速城市化侵占了大量的耕地,是迫使粮食在质量差的土地上生产的重要因素之一,造成了巨大的外部成本,应将其整合到城市扩展的代价中,以提高农业对土地的竞争性,求得城乡之间良好平衡.在这个基础上,还应在市区改造和新区建设之间取得平衡,即边缘地块上地租的净增加值应相等.收取的外部费用要用于土地的农业生产外部不经济性治理.土地管理应城乡整合,包括都市更新与新区建设通盘考虑.论文的研究等价于说,如果做到了如上所迷,那么城市扩展导致的土地价值上升部分就能够覆盖它的社会代价:基础设施建设的投入、拆迁投入、土地生产力建设投入和消除土地的农业生产外部不经济性投入.城市发展用地和农业用地会处在一个比较公平的竞争环境中,取得良好的平衡.