区域土地利用规划布局研究进展

该文对国内外区域土地利用规划布局理论与方法的研究现状进行了总结,分别对土地利用规划布局的理论体系、土地利用规划布局的模式、方法进行了分析,进而阐述了区域土地利用规划布局研究存在的不足,提出了以复杂性理论、复杂适应系统理论为指导的复杂空间决策方法,为土地利用空间决策开辟了新思路。     

Does governance efficiency matter for national innovative capacity? One tale from different countries

Various factors possibly impact on national innovative capacity. Governments are makers and implementers of national innovative policies, then, does its governance efficiency matter for the innovation of a country? Empirical evidence about the relationship between governance efficiency and national innovative capacity is still inadequate. To fill this research gap, the authors, based on the application of machine learning technique, have selected valid variables, conduct analysis with different models using the panel data of 117 countries from 1995 to 2015. The results of different models show that governance efficiency has a significant and positive impact with stability and reliability on innovation. In addition, the authors divide the 117 countries into different regions in accordance with economic development and geographic proximity, found that governance efficiencies of different regions have a heterogeneous but positive impact on national innovative capacity. Finally, potential policy implications are discussed.     

气相色谱/质谱联用法测定油田固废中的有机物

用色一质联用方法对江苏某油田的废弃泥浆、油泥油沙中所舍的有机物样品进行定性分析，共检出103种有机化舍物，主要为烷烃、烯烃类等。检测结果表明，所检测的江苏某油田的废弃泥浆和油泥不舍EPA优先控制有机化合物。     

A flexible adaptation of the WIOD database in a virtual laboratory

ABSTRACT

The World Input-Output Database provides a time series of world input–output tables (WIOTs) that have been used for example to understand the manifold effects of the increased integration of markets through international trade. In order to enhance the flexibility of research on global trade issues using WIOD, we implement the WIOT workflow in a collaborative, cloud-based virtual laboratory environment. We demonstrate that a lab-based adaptation of WIOD is able (a) to continuously create and update versions of the WIOTs in a timely, consistent, and cost-effective way, (b) to enhance original information with accompanying information on standard deviations, and (c) to enable flexible re-casting of the entire WIOT time series into user-specific geographical and sectoral classifications.     

The Twin Deficits Hypothesis: An Empirical Examination

Open Economies Review - The ‘twin deficits hypothesis’ (TDH) claims that there is a connection between fiscal and current account deficits. In its most extreme form, popularized by the...     

法国核电发展模式对我国的启示

文章分析了法国核电发展的现状以及法国核电发展的特点,并对法国核电的积极影响进行了简要分析,得出对中国核电发展的启示。     

网络裸聊行为定性问题辨析

网络裸聊是伴随着网络的快速发展而产生的新现象,目前,已成为网络淫秽色情有害信息的一种重要表现形式。但在实践中,对于网络裸聊行为的罪与非罪、此罪与彼罪的认定仍存在争议。本文拟在明确裸聊行为内涵、形式的基础上,对裸聊行为的性质进行深入分析。     

上海能源效率变动及其因素分析

本文首先就上海能源效率的发展现状进行了分析，结果显示，上海经济总量持续上升、产业结构变动显著，上海能源强度持续下降，但这一趋势近期有所减缓。为了能进一步分析上海能源效率的决定因素，本文构建了能源效率分析的因素分析模型，选用对数平均迪氏指数法（Log Mean Divisia Index）对上海的整体能源效率进行研究，并讨论上海整体能源效率变动的原因。结果表明，以部门强度效应为主、结构效应为辅的两大影响因素共同提高了上海的整体能源效率。最后，本文从优化产业结构、加大科研投资、促进能源结构多元化、加快新能源发展等方面提出了对提高上海能源效率的政策建议。     

股东换购ETF是一种股东减持吗?——基于市场反应的角度

2019年以来,上市公司股东用所持股份换购ETF进入快速发展阶段。股东换购ETF不会直接冲击二级市场供求关系,且国有股东换购ETF被视作推动国企改革的举措。本文研究股东换购ETF比例的影响因素,发现国有企业股东换购ETF比例高于民营企业,2019年的股东换购比例与其他年份无显著差异。进一步,研究股东换购ETF的市场反应及其影响因素,发现市场反应显著为负,产权性质对市场反应不产生影响,2019年的市场反应比其他年份更为负面。研究表明,尽管股东换购ETF存在可取之处,但资本市场将此视作股东减持。2019年11月以来,监管机构开始参照股东减持规定严格监管股东换购ETF,这与本文结论一致。     

法律环境、审计独立性与投资者保护

独立审计的根本功能是为投资者提供保护,但其投资者保护功能的实现需要相应的法律环境作为保障.本文通过模型分析,将法制因素与会计师的独立性变量引入到投资者保护中,考察法律环境、审计独立性与投资者保护之间的关系.我们的研究结果表明:法律对投资者的保护是第一位的;独立审计对投资者的保护是第二位的,当法治环境较薄弱时,其可以充当法律的替代机制为投资者提供保护.