基于文献计量学的洪涝灾害研究现状及发展趋势分析

以美国科学情报机构科学引文索引数据库(SCI-E)为数据源,通过文献计量学的方法从文献数量、学者数量、文献发表期刊分布、发文国家/地区、科研机构及关键词等方面对数据库中1988—2015年洪涝灾害的相关文献进行分析,以评估洪涝灾害的研究趋势。结果显示:1988—2015年洪涝灾害在其领域内发展迅速,无论是文献总量、参与研究的作者数量还是研究内容上都随时间呈上涨趋势;洪涝灾害相关论文主要覆盖的学科类别是"水资源",Natural Hazards为发表相关论文最多的学术期刊;美国是洪涝灾害领域发文量最多的国家,中国紧随其后位列第二;学术力量方面,洪涝灾害相关研究力量以高等院校为主,其中中国科学院为该领域研究发文量最高的科研机构;通过对关键词的分析可知,与洪涝灾害相关的科学问题研究中,"洪水管理""气候变化"和"模型"是未来研究热点,将高新技术广泛使用于洪涝灾害的研究领域,控制洪涝灾害对国民经济造成的损失,有利于经济的持续、稳定和健康发展。     

Why will Trump lose the trade war?

ABSTRACT

The escalating U.S.–China trade conflicts have increasingly shadowed the outlook of the world economy. The Trump administration aims to achieve its strategic goals including reducing current account deficits, promoting the U.S. manufacturing sector, and curbing Chinese high-tech industries by waging the trade war against China. This paper argues that the current account deficits and the declining manufacturing sector in the U.S. are mainly driven by its internal structural factors, such as low saving rates, high labor costs, and rising service sector, rather than by the import competition from China. Moreover, the trade war further deteriorates the U.S. current account deficits and erode its comparative advantage, and it forces China to invest more in technological innovation and human capital, and thus promote its progress in high-tech industries. Thus, the U.S. will not be able to achieve its strategical goals and eventually lose the trade war.     

On the Current Situation and Problems of High Education Institutes Digital Libraries Development

The paper discusses the necessity and objective of digital library system, and analyzes the current situation of the high education institute digital libraries in China as well as some potential problems. Development plan is proposed for the digital library system for universities.     

农民养老问题亟待解决

农村现行的家庭养老、土地养老、集体养老正在弱化,巩固家庭养老的基础地位,强化土地保障功能,辅之以社区扶持,推行多层次养老保险,符合中国国情和农村生产力发展水平,是解决农村养老问题的必然选择.     

Determinants of Current Account Imbalances in 16 OECD Countries: An Out-Of-Sample Perspective

We employ panel data as well as country-specific models to uncover empirically the determinants of current account imbalances. We find evidence of slope heterogeneity likely rendering the fixed-effect estimator inconsistent. Mean group estimation is followed to overcome the latter difficulty. Both estimation techniques are evaluated by means of in- and out-of-sample criteria. The mean group estimator outperforms the fixed-effect approach and, moreover, only three economic variables are found to impact on the current account balance significantly. These are the government budget balance, the domestic output gap and the changes of the terms of trade. We finally propose a parsimonious dynamic model of the current account, including only these variables and illustrate that it has similar predictive accuracy as country-specific benchmark models. JEL no. F32, C23, C53     

一项关于农村五保供养制度的实证研究——以闽北地区为例

农村五保供养制度是一项具有中国特色保障鳏寡孤独残疾人基本生活权益的制度,也是我国农村社会保障体系的重要组成部分。在实地调查的基础上,分析了闽北地区农村五保供养的现实状况,提出了未来建设农村五保供养制度的若干思路。     

石化企业乙烯物料平衡的实例分析

乙烯物料平衡是石化企业的主要物料平衡之一，由于乙烯衍生物的装置较多，影响石化企业乙烯物料平衡的因素也多。在分析了S企业的四个实例后，可以看出，搞好乙烯的物料平衡工作，可以提高乙烯下游装置的开工率和负荷率，从而提高企业的经济效益。     

Accrual accounting and Australian fiscal policy

Australian governments have recently moved from cash accounting to accrual accounting. Accrual accounting has been accompanied at the national government level by the introduction of a new key fiscal policy measure: the ‘fiscal balance’. This paper explains and evaluates this new fiscal measure. It concludes that, given the present fiscal policy of the Australian government, fiscal balance is a superior fiscal policy measure to the ‘cash’ budget balance measure which it replaced. However, from the alternative ‘golden rule’ policy standpoint, fiscal balance is not a meaningful fiscal policy measure — although its stock counterpart, net financial liabilities, certainly is.     

近10年日本宏观经济的理论分析与展望

近10年日本经济停滞不前，一方面对外经济状况不佳：日元对美元汇率技术下跌。且不断加剧；出口增长放缓，贸易顺差连续下滑，另一方面国内宏观经济状况严峻；失业率不断上升，内需不振；通货紧缩逐步加深；工业增长持续低迷，工业生产与效益下降，究其原因，用内外均衡模型理论分析得出，日本经济没有达到均衡的0点，内外均衡遭到了破坏，而展望今后的日本经济和日元走势，基于日本财政状况的恶化及货币政策的失效，估计还不会导致资本的大量外流。也不会对资本流动产生重要的影响，而结构改革也将可能引致日元升值。