科技金融结合试点政策对地区经济增长影响研究——基于科技创新与产业结构合理化的视角

科技金融是"第一生产力"与"第一助推力"的有机结合,承担着带动地区经济高质量发展的重要使命.基于当前我国科技金融结合不断推进的背景,文章以2007—2016年我国共285个地级市的面板数据为例,运用双重差分法(DID)对科技部、中国人民银行等五部门推行的科技金融结合试点政策对试点地区经济增长的带动效应及机制进行检验.结果表明:第一,科技金融结合试点政策能够有效带动试点地区经济增长,这一结论具有稳健性;第二,科技金融结合试点政策对试点地区经济增长的带动作用存在显著的地域性差异,东部最强、中部次之、西部最弱;第三,进一步的机制检验表明科技金融结合试点政策能够通过提升地区科技创新水平和推动产业结构合理化的双重路径带动地区经济增长.为了进一步推动科技与金融相结合,提升地区经济发展水平,各地政府应高度重视科技金融结合试点政策对地区经济发展的正外部性,积极申报试点城市建设.同时,应结合各地市情社情制定差异化试点政策,大力提升科技创新与产业结构合理化水平,充分发挥其对地区经济增长的中介作用.     

Diagnostics of multiple group influential observations for logistic regression models

In this paper, two new multiple influential observation detection methods, GCD.GSPR and mCD*, are introduced for logistic regression. The proposed diagnostic measures are compared with the generalized difference in fits (GDFFITS) and the generalized squared difference in beta (GSDFBETA), which are multiple influential diagnostics. The simulation study is conducted with one, two and five independent variable logistic regression models. The performance of the diagnostic measures is examined for a single contaminated independent variable for each model and in the case where all the independent variables are contaminated with certain contamination rates and intensity. In addition, the performance of the diagnostic measures is compared in terms of the correct identification rate and swamping rate via a frequently referred to data set in the literature.     

The Absolute Difference Law For Expectations

We revisit the addition law for expectations and present a sibling law: the absolute law for expectations. We show that these two laws and their corresponding laws for probabilities can be reconciled under a single framework. As an application, we use the absolute law for expectations to calculate the mean absolute deviation. Finally, we remark on a hidden point in a related article previously published on these pages; this will help readers to avoid a potential pitfall.     

为意义而战--论凯瑟琳·贝尔西的后结构主义文学意义观

凯瑟琳·贝尔西是英国著名的后结构主义文学批评家，意义观是其文学批评的重要组成部分。贝尔西的意义观以索绪尔的结构主义语言学为基础，她运用索绪尔的差异性原理批评表现论和摹仿论，认为语言不是透明的，文学作品的意义不在于表达作者的意图或反映客观现实。以此为基础，贝尔西接受能指物质化的观点，把意义的范围从语言扩展到符号，强调符号（包括文学作品）有外延意义和内涵意义，内涵意义不是自然和永恒的，而是由意识形态或话语决定，意识形态的转变导致对文学作品内涵意义的阐释也相应发生变化。由此，贝尔西的意义观实现了从结构主义向后结构主义的转变。     

From the Digital Divide to the Connectivity Dividend Difference: A Connectivity Capital Perspective*

The access divide was once the basic form of the digital divide. The development of Internet infrastructure has narrowed the access divide and increased application coverage, but it has also touched off a connectivity dividend difference. Taking the online market as an example, we examine the sources of the dividend difference and the factors influencing it with in a connectivity framework. We found that the narrowing of the access divide has resulted in enhanced connectivity and platform development, giving people the chance to benefit from transforming the various assets in which they have previously invested into differentiated compound connectivity capital. In the course, the scale and rate of the conversion are affected by two multiplier effects and especially by online platforms. The process is ultimately expressed in the dividend difference.     

Stimulating effects of intelligent policy on the performance of listed manufacturing companies in China

Based on the pilot projects of intelligent manufacturing of the Ministry of Industry and Information Technology of the People’s Republic of China and the annual data reported by listed companies, this paper studies the effect of China's intelligent policy on the performance of listed manufacturing companies by using the panel data of relevant enterprises from 2011 to 2017, as well as the mechanism of impact. Our empirical tests, using the difference-in-difference method, shows that intelligent policy can significantly improve the economic performance of manufacturing enterprises by guiding enterprises to optimize their intelligent management, strengthening investment in intelligent equipment and promoting collaborative manufacturing. Further empirical tests show that the impact of intelligent policy on economic performance is different in time. In the later selected pilot enterprises, the impact of intelligent policy on their economic performance is more significant; there is regional heterogeneity in the effects of intelligent policy: in regions with low intelligence, the positive impact of intelligent policy on the economic performance of manufacturing industry is more significant. Based on these conclusions, relevant intelligent policy suggestions are put forward.     

新型职业农民:成长轨迹、影响因素及培育策略——基于19个省市39位新型职业农民生命历程的分析

通过对全国19个省市39位优秀新型职业农民的生命历程进行分析,发现其成长轨迹呈现出折勾型、倒梯型、V字型、阶梯型以及N字型五种类型,并且不同来源、不同世代的新型职业农民成长轨迹具有一定的差异性。究其原因,新型职业农民终身发展的动力支撑显得不足;新型职业农民的个体主观能动性得到了充分的发挥;政府扶持与引领作用有待继续加强;新型职业农民培育时机并未得到恰当的把握;影响新型职业农民成长的相关利益主体分布比较广泛。针对以上情况,提出新型职业农民的培育策略:强化政府主导力量,增强新型职业农民职业吸引力;吸收年轻优秀群体,壮大新型职业农民的新生力量;重视人地实际需求,把握新型职业农民培育的时机。     

保险素养、收入差异与农民商业保险参与

乡村振兴战略的实施激发了农民在“医、养、住、行”等方面对美好生活的追求,与之对应的各类保险保障需求也随之涌现。对保险素养影响农民商业保险参与的机理进行了阐释,并使用陕西省565户农户的调查数据,实证检验了保险素养对农民商业保险参与选择的影响,以及农民个人收入差异对保险素养影响其商业保险参与的调节效应。研究表明,保险素养会显著促使农民商业保险参与概率增加3.1%。此外,个人经济收入差异对保险素养促进农民商业保险参与并未发挥出调节作用,即提升个人收入水平并不会增强保险素养对农民商业保险参与的促进作用。因此,有必要采取提高农民保险素养、有针对性地开发设计符合农民诉求的保险产品等措施促进农民商业保险消费,进而促进商业保险在农村地区的发展。     

中国内陆开放实践：机制分析与经济增长效应*

本文回顾了中国内陆开放的实践,并运用31个省（市、自治区）2000—2016年的面板数据通过建立双重差分模型（DID）实证检验了内陆开放的经济增长效应。研究表明：（1）中欧班列开启了中国内陆开放实践起点,2011—2016年,中欧班列开行数量快速增长,年均增速达160%,有效改善了中国内陆地区参与国际贸易的运输条件。（2）内陆开放将内陆地区变成开放前沿,显著地促进了中国中西部地区的经济增长。这一结论能够通过一系列稳健性检验。（3）内陆开放促进经济增长主要通过成本效应和结构调整效应两种机制实现。中国内陆开放的有效实践为其他内陆国家和地区发展开放型经济提供了有益借鉴。     

Difference and equality: Icelandic parents' division of parental leave within the context of a childcare gap

Iceland's parental leave system, granting mothers and fathers equal benefits, may be interpreted as part of the development in the Nordic countries towards a dual-earner/dual-caregiver model. Even though uptake studies show fathers' increased participation in childcare, the use of the entitlement varies and a gendered pattern persists. This paper is based on interviews with 14 Icelandic couples who find themselves in a situation where they have to bridge a care gap between parental leave and state-subsidized childcare. While mothers tend to stretch their part of the leave on the argument that six months is too short a leave, fathers generally find three months to be long enough. The discussion revolves around the question of the relationship between difference and equality, inspired by Andrea Doucet's (2006) concept of strategic essentialism. May we envision a policy system that takes into consideration the way people invest in gender and at the same time develop policy measures that facilitate gender equality?