生产性服务业集聚对绿色全要素生产率的影响——基于不同集聚视角下面板门槛模型的实证分析

基于产业集聚的理论研究和绿色发展的环境诉求,本文以2004-2016年中国30个省(市)的绿色全要素生产率为研究样本,运用面板门槛模型探讨供给侧视角下生产性服务业集聚对绿色全要素生产率的影响,从专业化集聚和多样化集聚角度证实了生产性服务业集聚对绿色全要素生产率存在结构突变效应,并鉴于内部细分行业集聚特征展开进一步探讨。结果表明:在不同集聚视角下,能源强度、经济发展水平对绿色全要素生产率存在不同程度的门槛效应;就全国层面,专业化集聚对绿色全要素生产率具有一定程度上的抑制作用,多样化集聚表现出较明显的促进作用;就行业层面,细分行业专业化集聚存在明显的行业异质性特征,金融业是提升绿色全要素生产率的重点行业。     

Positive asymmetric information in volatile environments: The black market dollar and sovereign bond yields in Venezuela

PurposeWe test the informational efficiency of Venezuelan USD sovereign bond yields when the black market exchange-rate premium (BMERP) changes.DesignWe use a non-parametric, asymmetric, Granger causality test to test our hypothesis.FindingsWe find that the bond market with less than or equal to 5 years of maturity seems to be efficient when good news is released on the BMERP. However, this market is not informationally efficient, and when combined with unbiased bad news regarding the BMERP, arbitrage opportunities are created.Originality/valueCapital controls that restrict free exchange-rate mechanisms create arbitrage opportunities with negative news as opposed to positive news.     

The side effects of quantitative easing: Evidence from the UK bond market

We examine the returns to UK government bonds before, during and between the phases of quantitative easing to identify the side effects for the market itself. We show that the onset of QE led to a sustained reduction in the costs of trading and removed some return regularities. However, controlling for a wide range of market activity, including issuance and QE announcements, we find evidence that investors could have earned excess returns after costs by trading in response to the purchase auction calendar. Drawing on economic theory, we explore the implications of these findings for both the efficiency of the market and the costs of government debt management in both the short and long run.     

Effects of Eurobonds: A stochastic sovereign debt sustainability analysis for Portugal,Ireland and Greece

This paper assesses the impact of Eurobonds on sovereign debt dynamics for selected European member states (Greece, Ireland and Portugal). For each member state, we produce sovereign debt fan charts of (i) a baseline scenario (no Eurobonds) and (ii) a Full-Fledged Eurobond introduction. The key building blocks of our methodology are (i) a debt framework (which embeds the traditional recursive debt equation), (ii) a vector autoregressive model to take into account and parametrise macroeconomic uncertainty and (iii) a fiscal reaction function. Conditional on the absence of moral hazard, we find Eurobonds to be a good instrument to absorb macroeconomic shocks and to diminish uncertainty over future debt forecasts; for Ireland and Portugal, we find debt to be 20 percentage points lower than under our baseline scenario, by 2020.     

Role of Green Governance in Achieving Sustainable Urbanization in China

Since economic reforms began in 1978, China＇s urban population has increased by half a billion. Over the next 20years, cities will likely add another 300 million people through local population growth, migration and the integration of nearby rural areas, Cities account for the majority of resource use and pollution so achieving greener growth will depend on developing and implementing a more sustainable urbanization model. China＇s leaders have responded to these challenges with ambitious goals and comprehensive environmental laws and regulations. These have so far not significantly reduced the harm from air, water and soil pollution.＂ in large measure because China ＂s green governance does not match its green ambitions. Drawing on the World Bank ＇s work on green growth and a recent joint urbanization study by the Development Research Center of China＇s State Council and the Worm Bank, this paper reviews recent academic research on green governance in urban China and discusses its main implications in the context of emerging global green growth concepts.     

我国大力发展绿色旅游的前景及策略研究

在席卷全球的绿色消费浪潮的冲击下,在国外绿色旅游勃然发展的推动下,我国的绿色旅游将会顺应时代潮流应运而生并显示出迅猛的发展势头。旅游企业不但要全面贯彻“绿色旅游”的理念,在引导旅游供应商提供符合环保要求的旅游产品的同时,也要引导旅游消费者致力于环境保护,形成统一的环保意识,并且节约旅游资源,保护旅游环境,最终实现旅游业的可持续发展。     

实施绿色经营 提高工厂化农业企业经济效益

实施绿色经营是国际公认的企业发展方向,也是确保社会经济可持续发展的有效途径。工厂化农业企业实施绿色经营即能满足社会和市场的需要,也能够降低生产成本,提高经济效益,同时也是注重可持续发展,实现自身价值最大化的必然选择。     

印度农村科技服务体系建设初探

印度首任总理尼赫鲁说过：“其他事情都可以等,唯独农业不能等”。作为拥有12亿人口的农业大国印度,农业和农村问题对其国民经济发展和国家稳定至关重要。本文对印度农村科技服务体系建设情况,农村科技信息化的发展及其在农村科技服务中的作用进行了介绍．针对印度中央政府、地方政府、非政府组织以及私营企业等各利益攸关方在农村科技服务体系建设中的作用进行了分析,重点研究了印度在现有体制和当前的社会发展现状中如何整合资源、发挥有关各方的积极性,因地制宜地开展农村科技服务工作。     

面向再制造的产品绿色模块化设计研究

各大再制造企业在实践中认识到,如果早在新产品的设计阶段就考虑产品使用期满后的回收和再制造的要求,就可以显著地提高再制造的效益和效率。对面向再制造的产品绿色模块化设计及其实施进行了研究,探讨了面向再制造的绿色模块化设计的优点,提出了面向再制造的产品绿色模块化设计的具体实现步骤。     

绿色建筑概论与实例介绍

文章精选了3个优秀绿色建筑素例进行详细介绍,通过实景照片展示了绿色建筑理念、技术与建筑设计的融合,并且提出了对绿色建筑的思考。