Renewable and nonrenewable energy production and economic growth in sub-Saharan Africa: a hidden cointegration analysis

The objective of this article is to investigate the hypothesis of asymmetric effects between economic growth and renewable and nonrenewable energy production. To this end, both the linear cointegration and the hidden cointegration methodology are employed, with the latter allowing a straightforward delimitation of the data in an economically sensible way. We test for the presence of hidden cointegration across 12 sub-Saharan African countries spanning the period 1971–2011. The empirical results confirm the growth hypothesis for a subset of countries, suggesting that their growth could be adversely affected by conservation policies, while for a second subgroup of countries they confirm the conservation hypothesis, indicating that conservation policies could enhance the growth process in these countries. The differentiation of the results could be captured entirely by the linear approach, indicating that the lack of cointegration between renewable energy production and economic growth found in previous studies may be due to failures to properly delimit the nonlinearity property in the data.     

潜规则与制度和经济秩序

自吴思的《潜规则》一书面世以来,＂潜规则＂已经成为家喻户晓的词汇。潜规则是区别于正式制度和非正式制度的第三种制度,它既依附于正式制度又逾越正式制度,造成多元规则并存,又腐蚀着非正式制度。尽管它增进了实施者的利益,却损害了经济效率和社会公平正义。为了压缩潜规则的运行空间,必须减小公权力所涉领域,充分发挥私权的作用,同时促进制度代理人与公共利益的共容。     

权证价格的趋势特征及其投资策略

以沪深两市中的全部权证为研究对象,运用溢价率和隐含波动率这两个反映权证价格趋势特征的工具对我国权证的二级市场进行实证分析。研究发现：权证的溢价率和隐含波动率呈现一定的变化趋势,认购权证和认沽权证的溢价率呈反方向变化,认购权证的隐含波动率高于认沽权证的隐含波动率。用这两个工具可以引导投资者挖掘权证的内在价值。     

Bond pricing in a hidden Markov model of the short rate

Abstract. We consider a diffusion type model for the short rate, where the drift and diffusion parameters are modulated by an underlying Markov process. The underlying Markov process is assumed to have a stochastic differential driven by Wiener processes and a marked point process. The model for the short rate thus falls within the category of hidden Markov models.     

现代职业大学的“校力”建设——以福建商业高等专科学校“校力”建设为例

高校的“校力”建设是一个高校内在核心力与凝聚力、外在影响力与辐射力的综合体现。“校力”建设包含一所大学所应具有的“硬实力、软实力、隐实力和巧实力”。高校先进的办学理念、科学的发展定位、雄厚的人才资源、一流的学科专业、完善的教学管理、高效的运行机制、先进的校园文化等,是高校“实力”的基本建设要素。     

浅析河口中心配气站天然气脱硫工程

文章针对天然气H2S含量严重超标,优选天然气脱硫工艺以及优化组织实施,保证了民用天然气H2S含量达到燃料气国家二类标准,消除了安全隐患,实现了节能减排,提高居民生活质量,社会效益、经济效益显著。     

Hidden Overhang of Domestic Debt and Its Role in the This-Time-Is-Different Syndrome: An Empirical Contingent Liabilities Model

The recent studies in public finance literature open an exciting research area on hidden overhang of domestic public debt and creative accounting. In this study, I identify hidden public debts in Turkey. I then develop a dynamical model that takes as given the stock of contingent liabilities generated by lending/borrowing relationships among public entities and looks for the debt (in)tolerance of government to liquidate it in finite periods. Last, I introduce a general empirical methodology to analyze the role of overborrowing in the this-time-is-different syndrome and test model outcome against data for hidden debts in Turkey's postliberalization period (1989-2010).     

中国进口原木存在的隐患及其对策研究

本研究认为从原木进口贸易上看,木材的大量进口使中国面临众多的问题,危及了中国木材工业的安全并产生相应的隐患。在此基础上,探究中国原木进口的现状,利用经济学相关理论从外贸依存度等角度较全面地分析了原木进口存在的隐患,并进一步从国际、国内2方面探究了存在隐患的原因,最后提出了解决问题的相应对策。     

农业隐蔽失业模型的构建及其意义——基于劳动力数量和劳动时间双重的视角

基于劳动力数量和劳动时间双重视角构建隐蔽失业模型,分析农业劳动生产率和产出变化对各种隐蔽失业结构和数量产生的影响。结果显示:模型得出的结论与刘易斯理论一致,而与舒尔茨理论相反,政府可据此制定相关政策。     

截面形状对洞库内爆冲击波流场影响的数值模拟研究

运用LS-DYNA动力有限元软件,采用ALE及多物质流固耦合方法,对截面面积相等而形状不同的弹药洞库内部爆炸冲击波流场进行了数值模拟研究。结果表明,截面面积相同而形状不同的2个洞库在炸药轴线上对应点的冲击波压力基本相同。