中国区域空间结构的三次转型与重构

在工业化、城市化的推动下,区域空间结构会有规律地发生三次转型,即区域经济社会发展以农村为主导向以城市为主导的转型,城市化发展由以单个城市为主导向以城市群为主导的转型,城市群发展向同城化的转型。由于我国地域广阔,区域差异很大,区域空间结构的三次转型在我国发生的时序不同,全国范围、四大地区、不同省区的区域空间结构都有不同的演进规律。"十二五"与"十三五"期间,我国正处于转型发展的关键时期,各地应创新城镇化发展道路,推进区域空间结构的转型。     

数字普惠金融发展能否促进农业机械化——基于农机作业服务市场发展的视角

数字普惠金融正处于兴盛之际且为中国农业机械化发展跳出"贷款难、贷款贵"的困局提供了新的线索和思路.本文基于2012年和2014年中国劳动力动态调查数据(CLDS)与北京大学数字普惠金融指数,构建宏观数据与微观数据匹配后的混合截面数据,从农机作业服务市场发展的视角研究数字普惠金融发展对农业机械化的影响及其机制.研究发现:...     

金融脱媒机理下的商业银行业务转型

随着经济金融体制改革向纵深推进和金融领域的全面对外开放,我国商业银行正经历着前所未有的经营环境巨变,脱媒趋势日益显现。本文分析了金融脱媒机理,认为金融脱媒只是经济发展到一定阶段对银行传统中介功能提出的挑战,并不意味着银行机构的消亡,商业银行需要创新中介功能来应对脱媒。本文结合我国银行脱媒的现状与特征,提出了我国商业银行可从开展零售银行业务、拓展中间业务、开拓网络银行业务、推动商业银行的综合经营等方面进行业务转型来应对脱媒。     

基于网络传播的上海品牌数字博物馆建设研究

网络的发展,特别是移动互联网的普及,给博物馆的发展提出了新的要求和挑战,数字博物馆也迎来了新的发展契机。以互联网为平台,建立一个以品牌为主题的数字博物馆,全面记录上海品牌从诞生以来的发展历程,多角度呈现上海城市的创新成果,传播品牌文化知识。品牌数字博物馆作为上海城市文化环境的组成部分,对增强一个城市的认同感和凝聚力起着重要作用,也是上海城市参与国际竞争、彰显城市地位的重要文化竞争力。     

Convergence and regulation of multi-screen television: The Singapore experience

This article addresses complicated convergent and regulatory issues arising from cross-platform audiovisual services and analyzes Singapore's multi-screen television experience. A “platform neutrality” multi-screen TV regulatory scheme is proposed to concentrate on content classification in order to respond to the fast-changing audiovisual industry and competition. Under the scheme, different content and license regulations are applied to four types of TV-like services which are categorized by “socio-cultural impact” (i.e., broadcasting and mass market vs. VOD and niche market)” and “content production/aggregation model” (i.e., gatekeeping vs. participatory mechanism). In addition, competition, content regulation, and digital copyright are identified as key issues involved in the fast-growing cross-platform audiovisual media industry. Finally, this study analyzes market development, regulatory issues, and national plans for multi-screen TV services in Singapore and examines them under the proposed regulatory scheme. Market and policy recommendations are discussed.     

天津市现代服务业竞争力评价与提升研究

服务业作为第三产业对城市或区域的经济发展发挥至关重要的作用,处在服务业高端领域的高端服务业更体现了产业结构高级化和服务业内部结构优化的趋势。天津市是一个以传统制造业为主的工业城市,在服务经济时代,如何通过服务业的转型升级推动天津市经济的快速发展,是摆在天津市政府面前的重大课题。本文以高端服务业为主要研究对象,指出其为传统服务业转型升级的主要目标,通过对高端服务业的具体阐述,在此基础上提出了天津市区发展高端服务业的对策建议。     

Solution business models: Transformation along four continua

Using a business model perspective, we identify four continua that are of specific relevance for industrial firms transforming toward solution business models: customer embeddedness, offering integratedness, operational adaptiveness, and organizational networkedness. Using these continua, we explore the opportunities and challenges related to solution business model development in two different business logics that are of particular importance in an industrial context: ‘installed-base’ (IB) and ‘input-to-process’ (I2P). The paper draws on eight independent research projects, spanning an eleven-year period, involving a total of 52 multinational enterprises. The findings show that the nature and importance of the continua differ between the I2P and IB business logics. IB firms can almost naturally transition toward solutions, usually through increasing customer embeddedness and offering integratedness, and then by addressing issues around the other continua. For I2P firms, the changes needed are less transitional. Rather, they have to completely change their mental models and address the development needs on all continua simultaneously.     

Investment in online advertising and return on sales: Does it pay to outsource the services to an advertising agency?

Abstract

The effect of investing in online advertising on a firm’s financial outcomes can depend on whether or not the development and implementation of advertising campaigns are managed by advertising agencies. Agencies may have experienced professionals or workload to perform these jobs, but the costs are greater. This paper aims to investigate the effects of investments in digital marketing on the financial outcome of a company’s services, comparing whether or not it is outsourced to advertising agencies. The secondary data relates to services advertised and marketed by a firm. We tested the possible moderating effect of outsourcing the service in the relationship between investment in online advertising (Google and Facebook) and return on sales (profit margin), by controlling the effect of covariates. Through four regression analyses, the results showed that outsourcing the service moderates the relationship. Specifically, the higher the amount of advertising investment, the more it pays to outsource the service to an advertising agency in order to generate greater profit margin. But with a low investment value, it does not pay to outsource. This study helps to identify situations in which it pays to outsource digital marketing services to an advertising agency.     

AD8369及其在数字中频接收机中的应用

介绍了数字可变增益放大器(DVCA)AD8369的电路结构及其关键技术指标，并用该芯片为数字中频接收机设计了全数字自动增益控制(DAGC)系统，给出了其控制回路及其实现算法。该DAGC系统具有收敛速度快、工作稳定性好和抗饱和能力强等特点。     

用HSP50214B实现跳频信号的实时变频解跳处理

本文提出了一种对跳频信号进行解跳的方法。其基本思想是利用数字变频将跳频信号不同频率的各个跳段信号变频到统一载频上,使其转变为定频信号。文中着重论述了变频方案和内部参数的设计,并通过具体的例子说明了本方法基于HSP50214B的实现。