川西北高原藏区农村贫困化分异机制探测

[目的]客观揭示农村贫困化地域分异机制,为科学推进川西北高原藏区精准扶贫创新途径、综合战略和认真贯彻落实中央治藏方略提供参考依据。[方法]应用地理探测器模型、GIS空间分析与地统计方法等方法,探测川西北高原藏区贫困村单位面积GDP分异的主导因素,揭示农村贫困化分异机制,提出不同贫困化地域类型的扶贫政策措施。[结果]影响川西北高原藏区农村贫困化分异的主导因素包括到主要交通道路距离、归一化植被指数(NDVI)、土地利用、年均温度和海拔高程等,各因素对贫困村经济发展分异的解释力分别为80. 76%、12. 82%、8. 82%、5. 45%和3. 96%;贫困村经济发展贫困化的分异机制存在明显差异,可归纳为交通区位约束型、自然环境约束型和经济区位约束型等三大类型;农村贫困化驱动机制下的贫困村精准扶贫政策措施亟需因地制宜、科学推进、讲求实效,有序推进精准扶贫战略。[结论]精准扶贫应分类指导、重点突破,尤其加强贫困村交通、水利、公共基础设施建设和特色农牧业产业培植,注重多种扶贫模式的综合集成。     

How will the Belt and Road initiative advance China’s exports?

We examined 2007, 2010, 2012, 2014, and 2016 data from 49 countries to determine changes wrought by China’s Belt and Road initiative; we also used panel data regarding the Maritime Silk and Inland Silk Roads to test initiative effects on Chinese exports. Post-initiative infrastructure expansion and logistics performance improvements led to positive effects on China’s exports. Additionally, legal-system similarities and inland borders with trade partners had a more positive effect on Chinese exports in the Inland Silk Road, while population and free trade agreements were found to have a more positive effect on the Maritime Silk Road.     

Corruption and Its Effects on FDI: Analysing the Interaction Between the Corruption Levels of the Home and Host Countries and Its Effects at the Decision-Making Level

This study furthers our understanding of how corruption affects the decision-making process of allocating foreign direct investment. Drawing on the responses of 28 managers in charge of establishing operations in a highly corrupt host country, we argue that those firms based in home countries with low levels of corruption are more proactive in preparing to face corruption abroad than those based in countries with high corruption levels. This means that firms from less corrupt home countries have strategies in place to deal with high corruption abroad. This finding is based on the fact that these firms have stronger pressures to not engage in corruption from their home stakeholders. Also, these firms might not have the experience of dealing with corruption at home, which hinders their potential to deal with corruption abroad. On the other hand, those firms based in highly corrupt home countries do not have clear strategies to deal with corruption abroad. This assertion is based on the fact that these firms might have familiarity in dealing with corruption and thus, might not see it as an obstacle to operating abroad.     

C-RAN网络中基于稀疏性的预测矩阵求解算法

在C-RAN（Centralized,Cooperative,Cloud Radio Access Network）无线网络基于转移矩阵的负载预测方法中，虽然该预测矩阵具有稀疏特性，但是现有的技术缺乏对稀疏特性加以利用，从而造成计算复杂。针对此问题，提出了一种基于稀疏性的预测矩阵求解算法。该算法对网络状态转移矩阵进行分块迭代，每次等分4块，并分别定义4块矩阵的偏移量。当属于同一行的块矩阵的偏移量有一个是零矩阵时，直接得出所求矩阵对应块的元素全部为零，然后进行下一次迭代；当属于同一行的块矩阵偏移量都不为零矩阵时，通过对矩阵方程组变形处理，转换成迭代格式，然后分块处理。最后，结合仿真定量分析稀疏矩阵稀疏度的临界值问题，给出了稀疏度与计算量之间的关系，并证明了其合理性。仿真结果表明，所提算法能够在不影响预测准确度前提下，降低复杂度。     

Taxation and the Environment–Health–Poverty Trap: A Policy Experiment Perspective

Under pressures related to economic growth and environmental protection, China is facing an increasingly severe “environment–health–poverty” trap risk. Fuel taxation is generally considered an effective policy to counter such a risk. Since 2009 China has raised the fuel tax rate many times to enhance tax reform. However, the effects of this policy remain unknown. Therefore, it is vitally important to estimate the impacts of China's current fuel taxation policy on environment, public health and the national economy. As the first attempt in existing literature on China, this paper builds a general equilibrium framework with the feedback effect of public health on economy. We find that that the fuel tax policy benefits the adjustment of the economic structure and improves human health; however, it is detrimental to economic growth, public welfare and price stability. In this sense, it plays a limited role in reducing the trap risk and might not be sustainable in the long term.     

信号级协同计算平台架构及应用思考

针对智能化作战对军事电子信息系统计算能力提升的迫切需求，结合云计算的资源虚拟化、大数据的分布式计算等技术，提出了基于嵌入式CPU+ALL（DSP、FPGA、PPC、GPU、AI处理器等）的异构处理的信号级协同计算平台架构，包括弹性、轻量级异构资源虚拟化模型、分布式实时计算框架和智能计算框架等，形成了一套架构统一、资源共用、使用简便的协同计算和智能计算环境。通过战术级无线电认知和智能信号与信息处理两个典型应用场景，探讨了该信号级协同计算平台可能带来的颠覆性效用。     

环境公平感知、社会信任与农户低碳生产行为*——以农膜、秸秆处理为例

［目的］研究旨在探讨环境公平感知和社会信任与农户低碳生产行为之间的关系，为促进农户生产行为向低碳化方向转变提供对策建议。［方法］基于陕西和甘肃两省的村域调查数据，以农膜和秸秆处理为例，运用二元logistic模型探讨环境公平感知和社会信任对农户低碳生产行为的影响，并结合分层回归分析了社会信任在环境公平感知和农户低碳生产行为间的调节效应。［结果］（1）在环境公平感知维度中，人际公平感知正向影响农户的农膜和秸秆处理行为； （2）对社会信任来讲，人际信任对农户农膜和秸秆处理行为均有显著的促进作用，而制度信任仅对农户秸秆处理行为具有正向影响； （3）人际信任在种际公平感知和农户农膜处理行为之间具有显著的正向调节效应，而制度信任在两者之间具有显著的负向调节效应； 同样，人际信任在人际公平感知和农户秸秆处理行为之间具有正向调节效应，而制度信任弱化了人际公平感知对农户秸秆处理行为的影响。［结论］环境公平感知和社会信任是影响农户低碳生产行为的关键因素，且社会信任在种际公平感知和农户农膜处理行为之间以及在人际公平感知和农户秸秆处理行为之间具有显著的调节作用。     

企业研发投资的动态调整:平滑性或波动性

研发投资是企业自主技术创新的重要保障,其平滑性或波动性调整是研究企业研发行为的前提。本文以1990-2017年间1968家中国A股(非金融类)上市公司的非平衡面板数据为对象,通过考察目标研发水平来估算研发投资调整速度。证据表明,企业确实在追求目标研发投资水平,并根据内外部环境的变化而进行动态调整。这些结论无论是在公司规模、时间跨度还是在不同时间段上都具有稳健性,并且表明固定效应的部分调整模型与数据非常吻合。     

去产能企业债转股的市场化机制研究

按市场化原则实施"债转股"是巩固2015年至今去产能的阶段性成果、建立化解过剩产能的长效机制、妥善处置去产能企业债务问题的有效途径之一。实现去产能企业的市场化运作,需要客观分析去产能企业债务状况的变化,准确把握去产能企业债务结构的特殊性,明确对去产能企业实施债转股的前提条件,从按市场化原则选择债转股实施对象、确定债转股价格、筹集债转股资金、确定持股人地位、确定股权退出方式、明确非金融债务债转股准则六个方面入手,有效推进去产能企业债转股市场化机制的建立。     

大数据背景下企业财务管理面临的挑战与变革

随着社会经济的快速发展,市场经济体制在不断地完善,科学技术水平也在不断地上升,这时我国进入了大数据时代。传统的财务管理模式已经无法再适应时代的发展变化,所以企业应该及时转变自身的财务管理模式,更新管理理念。论文针对大数据背景下企业财务管理面临的挑战和变革进行分析,介绍财务部门的主要作用和发展现状,并提出提高财务管理水平的具体方法和策略,希望能够为企业的发展起到一些参考作用。