Innovation in the bioeconomy – dynamics of biorefinery innovation networks

The bioeconomy has become a central concept in many strategies for future economic development, emphasising an increasing need for collaboration across industries and sectors for innovation. This paper unpacks aspects of collaboration in the bioeconomy by looking at the development of innovation networks for biorefinery technologies from 2004 to 2014 based on innovation project data from Swedish public funding agencies using a stochastic actor-oriented model for network analysis. The analysis shows that although the network grew significantly during the time period, indicating an increasing interest in biorefinery technology innovation, inter-sectoral collaboration is not favoured over intra-sectoral collaboration. As is known from previous work on social networks trust-building is a key driver for collaboration, as actors tend to form collaborations with previous partners or indirectly connected partners, creating clustered networks.     

新疆网络舆情信息传播的统计分析

随着新疆互联网的不断普及,网络舆情信息的传播对民众的日常生活影响日益加大.研究发现,各大网站的论坛、微博、博客等是新疆网络舆情信息传播的主要载体,青年人或年龄偏大的知识分子是网民的主体.在信息化的今天,掌握信息传播规律,建立科学的网络舆情体系和有效的沟通方式有助于政府了解民意、提高办事效率,也有助于提升政府应对网络舆情的能力.     

基于VMI的中低压配网物资协议库存采购模式研究

协议库存采购是国家电网公司为提高中低压配电工程物资供应的时效性对配网的部分物资实行协议库存采购货物招标的一种新的采购模式。为提高供应商的准时供货率,保障物资供应,在供应商管理库存（VMI）的基础上,将电网企业的物资采购与库存方式相结合,提出了VMI协议库存采购模式及具体的实施方式。     

基于陆域和空域运输系统的空港可达性评价方法研究

空港可达性可分为陆域可达性和空域可达性两部分进行计量,前者评价可知乘客访问空港的便利程度,后者评价空港为乘客提供前往目的地从事活动的便利性和丰富程度.选取全国141家空港为评价对象,基于SAGA GIS平台建立空港的陆域运输网络,根据航班信息构建空港的空域航空时空服务网络,再计算空港的陆域和空域可达性,然后比较及分析各空港可达性在空间和时间上的分布特征.研究认为,评价方法有助于规划建设者或运营管理者充分认识空港的区位选址与航空系统资源的特性,保证机场选址和运营管理方案的科学有效性.     

基于社会网络分析的高校科技成果转化团队知识网络研究——以南昌大学江风益团队为例

以南昌大学江风益团队为例,采用社会网络分析方法对高校科技成果转化团队的知识网络进行建模和分析。通过节点中心性测度和凝聚子群分析,研究了江风益高校科技成果转化团队知识网络的节点重要性和派系结构。结论如下:该团队的核心成员在团队知识网络中起着主导知识协作关系和引导知识协作行为的关键作用;该团队的知识网络中存在7个派系,其中绝大多数派系由核心成员主导,这反映出该团队具有高度凝聚性。最后,从发展关键节点、连接孤立节点和促进知识团体三个方面提出了进一步优化团队知识网络的建议。     

网络公司价值评估方法的比较研究

网络的出现改变了人们生活和工作的方式,也为这个社会带来了巨大的商机。随着网络公司如雨后春笋般的出现以及网络股在市场中的表现,评估师们面临这样一个问题：如何评估网络公司的价值？网络公司作为一种新的组织形式,在运用传统的价值评估方法对网络公司进行价值评估时遇到了瓶颈。如何正确地看待网络公司的价值这一问题,亟待解决。     

世界互联网城市网络的可达性与等级体系

根据2008年全球互联网地图,利用网络分析方法,计算了城市节点的整体可达性和最短距离可达性,并结合总带宽和连线数据,对世界互联网城市进行了等级划分。研究表明:影响世界互联网城市节点整体可达性和最短距离可达性的关键因素略有不同;世界互联网城市等级体系是建立在原世界城市体系上的一种新等级,其受节点网络功能、世界金融中心地位、国际航空交通运量,以及GDP和综合竞争力等因素影响。     

Exploring the predictability of range‐based volatility estimators using recurrent neural networks

We investigate the predictability of several range‐based stock volatility estimates and compare them with the standard close‐to‐close estimate, which is most commonly acknowledged as the volatility. The patterns of volatility changes are analysed using long short‐term memory recurrent neural networks, which are a state‐of‐the‐art method of sequence learning. We implement the analysis on all current constituents of the Dow Jones Industrial Average index and report averaged evaluation results. We find that the direction of changes in the values of range‐based estimates are more predictable than that of the estimate from daily closing values only.     

基于WEB的网络管理技术的研究与实现

随着计算机技术和通信技术的发展,计算机网络已经渗透到社会及经济生活的各个领域。网络用户和数据流量的急剧增长,给网络管理带来很大的压力和难度。基于Web的网络管理技术凭借其优势能更好满足网络管理需求,也能使网络管理更加方便和快捷。本文主要从基于Web的网络管理技术的概况、Web网络管理技术的主要功能等方面,对基于Web的网络管理技术及实现进行分析。     

WHAT CAN WE LEARN FROM THE IMPLEMENTATION OF MONETARY AND MACROPRUDENTIAL POLICIES: A SYSTEMATIC LITERATURE REVIEW

The emergence of macroprudential policies, implemented by central banks as a means of promoting financial stability, has raised many questions regarding the interaction between monetary and macroprudential policies. Given the limited number of studies available, this paper sheds light on this issue by providing a critical and systematic review of the literature. To this end, we divide the theoretical and empirical studies into two broad channels of borrowers – consisting of the cost of funds and the collateral constraint – and financial intermediaries – consisting of risk‐taking and payment systems. In spite of the existing ambiguity surrounding coordination issues between monetary and macroprudential policies, it is argued that monetary policy alone is not sufficient to maintain macroeconomic and financial stability. Hence, macroprudential policies are needed to supplement monetary. In addition, we find that the role of the exchange rate is critical in the implementation of monetary and macroprudential policies in emerging markets, while volatile capital flows pose another challenge. In so far as how the arrangement of monetary and macroprudential policies varies across countries, key theoretical and policy implications have been identified.