移动运营商和增值服务提供商关系模型构建研究

利用价值链分析工具揭示了影响增值业务产业价值链上运营商和增值服务提供商力量对比和关系发展的本质因素是客户数量和客户价值,将二者合称为客户质量,其中客户价值被量化为货币收益价值和客户增量。并以移动运营商和增值服务提供商关系特征为基础提出了客户引力假说,建立了运营商和增值服务提供商之间的力量对比模型以及关系模型。通过关系模型说明运营商和增值服务提供商在关系生命周期各个阶段的关系发展趋向,将其作为运营商与服务提供商实行关系营销的参考依据。     

“一带一路”倡议有助于沿线城市绿色创新“增量提质”吗？

“一带一路”倡议作为构建人类命运共同体重要平台,推动绿色发展是其题中之义。绿色发展的关键在于绿色创新,本文采用双重差分法（DID）,以我国280个地级市2005—2019年的面板数据为研究样本,从“数量”和“质量”两个维度实证检验“一带一路”倡议实施对我国沿线城市绿色创新的影响、作用机制及时空差异。研究发现：(1)“一带一路”倡议有效促进了中国沿线城市绿色创新的“增量提质”;(2)“一带一路”倡议可以通过产业结构升级效应、数字经济赋能效应和资源集聚效应促进中国沿线城市绿色创新的“增量提质”;(3)相较于东部和西部城市,“一带一路”倡议对中部城市的绿色创新具有更显著的促进作用;(4)“一带一路”倡议对非资源型城市和特大城市绿色创新“增量提质”作用更加显著。研究结论对于推动共建“一带一路”向高质量发展转变提供了重要的启示。     

经济增长质量的研究进展与学术展望

改革开放40多年来,中国经济铸就了高速增长奇迹,目前已经具备向高质量发展转变的客观条件。本文通过梳理中国经济增长质量的相关文献,总结当下经济增长质量问题的研究不足和未来研究方向。研究发现：关于经济增长质量的文献集中在经济增长质量的内涵界定和解析、经济增长质量的评价维度与定量测度、经济增长质量的影响因素与调控政策等方面,研究成果较为丰富,但也存在经济增长质量的评价指标选取不一致、经济增长质量的评价指标缺乏宏微观维度区分、经济增长速度和增长质量关系认识不清等问题,今后学术研究当以此为重点突破方向。本文关于经济增长质量的文献梳理和评价,对各界理解经济高质量发展,确定经济增长质量的研究方向具有重要意义。     

GMO-free regions in Europe: an analysis of diffusion patterns

Genetically modified organisms (GMOs) have been a controversial issue in the European Union (EU). A growing number of member states and regions within the member states oppose the EU’s agro-biotechnology policy, resulting in a complex multi-level structure of policy-making. This study is interested in the regional opposition to GMOs and scrutinises the determinants of membership in the European Network of GMO-free Regions. In terms of theory, this study builds on the literature of policy diffusion. For the analytical purpose, we distinguish among four diffusion mechanisms: learning from earlier adopters, economic competition among proximate regions, imitation of economically powerful regions and deviation from national law. Our research questions are the following: How has membership developed since the foundation of the network? Which mechanisms explain the diffusion patterns observed? The empirical findings show that membership in the network has grown substantially between 2003 and 2014, which supports the general expectation that there is a diffusion of GMO-free regions. Yet, most new member regions are located in the same member states as the regions that founded the network. In other words, what is observed is intra-country diffusion rather than inter-country diffusion. The empirical findings provide support for the importance of learning from earlier adopters for the growing of the European Network of GMO-free Regions.     

Unconventional Monetary Policy in the Eurozone: A Lack of Forward Guidance?

From July to December 2011, the three-month EURIBOR-OIS and EURIBOR-Repo spreads quadrupled and reached 100 basis points due to a stabilization of the EURIBOR and a decrease in the overnight index swap (OIS) and Repo. Using a specific monetary policy announcements and financial indicators database, we find that the European Central Bank’s (ECB’s) unconventional measures did not systematically have a calming effect: Asset buyout announcements decreased market strains, whereas interest rates and liquidity provision announcements did not. Moreover, liquidity provision seems to have a stressing effect. Our findings are consistent with the theoretical underpinnings according to which forward guidance crucially determines the effectiveness of unconventional monetary policies.     

Quantity restrictions and endogenous quality choice

In a vertical product differentiation model under Cournot competition both foreign and domestic firms respond by lowering their investment in long-run quality for a quantity restriction at, and in the neighborhood of, the free trade import level. Average quality increases only when the low-quality foreign firm faces a substantially restrictive quota/voluntary export restraint. The change in quality depends on whether the foreign firm is of high or low quality and upon the restrictiveness of the quota. The imposition of quantity restrictions has important strategic effects on the long-run choice of quality.     

社保基金持股与企业盈余质量:A股上市公司的证据

本文利用中国A股上市公司2006-2015年的数据,研究社保基金持股对上市公司盈余质量的影响。我们用上市公司财务重述作为测度盈余质量的指标,发现社保基金持股能够显著降低企业发布财务重述的概率,这表明社保基金对上市公司盈余质量的提高具有促进作用。并且,社保基金的这一治理作用在国有企业、内部治理水平较差以及市场化程度较低地区的上市公司中更加显著。通过双重差分模型和安慰剂检验等方法弱化了内生性问题之后,以上结论依然成立,说明社保基金持股和盈余质量提升之间存在因果关系,我们称之为社保基金的公司治理作用。进一步研究发现,社保基金可以通过抑制控股股东资金占用、增加机构调研次数等途径提升被持股公司的盈余质量。本文有助于认识和评估社保基金持股对于上市公司的监督与治理作用。     

海归与企业出口行为:来自中国的微观证据

海归能否促进母国企业的出口？目前国内还尚未有文献专门对此进行研究。本文使用工业企业微观数据、海关贸易数据以及中国上市公司治理结构研究数据库的合并样本,系统评估了海归对企业出口行为的影响。研究发现,海归对企业出口产生了积极作用,并且上述正向的“出口拉动”效应在样本期内具有持续性而且是逐年递增的。进一步,我们考察了地区制度环境的重要性,发现良好的地区制度环境有利于强化海归对企业出口的促进效应。最后,行业出口质量的动态分解表明,资源再配置效应对行业出口质量提高的贡献高达54%,其在海归促进行业出口质量提高中发挥了关键作用。本文从微观层面证实了海归“出口拉动”效应的存在,对我国有效挖掘海归在提升企业出口竞争力方面的优势和潜力具有政策参考价值。     

A Model for Studying the Effect of EMU on European Yield Curves

In January 1999, the European monetary union (EMU) was formally launched with 11 member countries. However, before May 1998 there was considerable uncertainty about who would join EMU, and whether the project would start on time. When a monetary union is formed, exchange rates between the member countries are irrevocably fixed, and yield spreads stemming from exchange-rate risk are eliminated. As a direct consequence, EMU affected the prices of long-term bonds well before 1999, but quantifying this effect can be difficult when there is uncertainty about the monetary union. We address these issues and develop a bond-pricing model which explicitly takes into account that a country may join a monetary union at a future, unspecified date. The empirical results show that a narrow EMU, consisting of Germany, France and the Benelux countries, has been priced with almost 100% probability throughout the period 1995–1998, whereas, on average, the implied probability of joining EMU has been somewhat lower for the other EU countries. However, in the period leading up to May 1998, the estimated probabilities have increased considerably for the countries that joined EMU in January 1999.     

Here come the men in black Technology and anxiety in the postmodern age

This review of the film Men in Black argues that what used to be alarming in the science fiction genre has now become its main source of humour. As a reactionary response to the dystopic X-Files, MiB is an elaborate parody which seeks to recuperate ideological ground lost by the X-Files' examination of gender and technology in contemporary culture. Anxiety about the roles of technology, gender and the state are replaced by humour about the notion of anxiety itself. Anxious we may be at the close of the millenium, but MiB tells us to just laugh it all away.