疫情对经济的影响与“灾害适应型经济”的转型

新型冠状病毒肺炎疫情对中国乃至世界经济产生了巨大的冲击。疫情的冲击颠覆了传统经济学的认知，需从理论上对经济衰退的原因和机制重新认识，特别是对疫情之下“非常态经济”及其与“常态经济”之间的关系加以研究；疫情的冲击亦暴露出现有的经济系统存在的问题，需要推动经济的转型，打造“灾害适应型经济”。本文基于辩证思想，从负面和正向两个方面来研究疫情对经济的影响，充分发掘新动能，利用新机会，推动中国经济向“灾害适应型经济”转型，实现中国经济的可持续、高质量发展。     

The impact of research collaboration on academic performance: An empirical analysis for some European countries

The aim of this paper is to investigate the impact of internal and external research collaborations on the scientific performance of academic institutions. The data are derived from the international SCOPUS database. We consider both quantity (the number of publications) and quality indicators (the field-weighted citation impact and the share of publications in the 10% most-cited articles) to evaluate universities' performance in some European countries (Germany, France, Italy, the UK and Russia). To this end, we develop a non-overlapping generations model to evidence the theoretical idea of research externalities between academic institutions. Moreover, we implement an empirical model to determine the extent to which the impact of internal and external collaborations on universities' performance is sensitive to the geographical dimension of the data.     

“We are all so different that it is just … normal.” Normalization practices in an academic hospital in the Netherlands

Internationally, academic hospitals are giving increasing attention to diversity management. This paper sheds light on the actual praxis of cultural diversity management by professionals in workplace interactions. An ethnographic study in a Dutch academic hospital showed that normalization practices were obscuring diversity issues and obstructing inclusion of cultural minority professionals. The normalization of professionalism-as-neutral and equality-as-sameness informed the unequal distribution of privilege and disadvantage among professionals and left no room to question this distribution. Majority and minority professionals disciplined themselves and each other in (re)producing an ideal worker norm, essentialized difference and sameness, and explained away the structural hierarchy involved. To create space for cultural diversity in healthcare organizations in the Netherlands and beyond, we need to challenge normalization practices.     

新冠肺炎对江苏省商贸流通业的影响与应对措施

2019年底、2020年初,一场猝不及防的新冠肺炎(NCP)病毒突袭我国的武汉地区。在地点上,武汉地区是京广线的重要节点城市,长江水运与京广铁路构成中国交通十字形的重要枢纽;在时间上,正逢中国传统春节,是中国节日经济的一个重要时期。病毒的“精准投放”并蔓延,在全国造成了严重后果,使全国上下纷纷动员进行应对,造成社会生活的暂停和群众生活的困难,对我国经济发展产生了重大影响,江苏商贸流通业也不例外地受到重创。江苏在中央的英明领导下进行了坚决的防治,商贸流通业也做了大量的工作,后期将继续做好止损增销工作。     

新冠肺炎疫情对中小微外贸企业的影响及对策

突如其来的新冠肺炎对全球经济造成了很大的影响,我国对外贸易当然更是无法幸免。但总体而言,笔者认为,短期影响虽然十分严重,但正在逐步消弭;中期影响需要认真对待,损失基本可控;长期影响更加深刻,但是依然可以化解——我国以及我省对外经济贸易总体向好的态势有望保持。然而,面广量大的中小微外贸企业原本就身体单薄,这场突如其来的疫情,无疑又是雪上加霜,日子更加艰难,亟待关注与帮扶。     

No‐arbitrage implies power‐law market impact and rough volatility

Market impact is the link between the volume of a (large) order and the price move during and after the execution of this order. We show that in a quite general framework, under no‐arbitrage assumption, the market impact function can only be of power‐law type. Furthermore, we prove this implies that the macroscopic price is diffusive with rough volatility, with a one‐to‐one correspondence between the exponent of the impact function and the Hurst parameter of the volatility. Hence, we simply explain the universal rough behavior of the volatility as a consequence of the no‐arbitrage property. From a mathematical viewpoint, our study relies, in particular, on new results about hyper‐rough stochastic Volterra equations.     

学术印记、网络惯例与大学衍生企业产业嵌入

在大学衍生企业创业实践中，与产业主体间缺乏合作默契已成为大学衍生企业向产业网络嵌入的重要阻滞因素。针对该问题，基于网络惯例新视角，从大学衍生企业学术创生背景带来的异质性入手，构建“学术印记—网络惯例—产业网络嵌入”作用模型，探索技术动荡性的调节效应。运用多元回归分析等方法，对379家大学衍生企业调研数据进行实证检验。结果表明，大学衍生企业学术印记对网络惯例建立具有积极促进作用。同时，在向产业嵌入过程中，网络惯例对产业网络嵌入两个维度的作用机制存在差异，与结构嵌入存在倒U型关系，但正向促进关系嵌入。技术动荡性在“学术印记—网络惯例—产业网络关系嵌入”关系中具有正向调节作用。     

高管学术经历能提高企业分红吗？

文章选取2008-2017年沪深A股3449上市公司的23193个样本数据，实证检验了高管学术经历与企业分红水平的关系。研究发现，相比于高管无学术经历的企业，有学术经历高管企业的分红水平显著更高。高管的学术经历通过缓解融资约束，而不是缓解过度投资的路径显著提高企业分红水平。在进一步的研究中，通过引入外部治理与企业产权性质影响因素，发现外部治理较弱、非国有企业的情况下，高管的学术经历对企业分红水平的提高作用更加明显。采用倾向得分匹配法（PSM）、工具变量回归等检验结果依然稳健。研究丰富了高层梯队理论与企业分红相关性的文献，发现了中国情境下影响企业分红的新因素。     

Envisioning a community‐centric approach to impact assessments in subsistence marketplaces

What does a community‐centric approach to impact assessment look like? That is the central question addressed in this article. Our community‐centric perspective provides an alternative to discipline‐centric approaches to impact assessment that emphasize specific methodological gold‐standards (e.g., randomized controlled trials [RCTs] in development economics). Disciplinary approaches to impact assessment owe their principal allegiance to the discipline's knowledge‐creation norms. Consequently, the concerns, interests, and voices of community members are not fully captured in the impact assessment process. In this article, we flip the conventional perspective to offer a community‐centric view of impact assessment that places the concerns, interests and voices of community members front and center. We present the case for why we need a community‐centric approach to impact assessment and clarify its axiological content, theoretical perspective, and methodological stance. Specifically, we advocate for a relational axiology, a system‐theoretic perspective, and a phenomenological methodology.     

Comparing Compliance Behaviour of Students and Farmers. An Extra-laboratory Experiment in the Context of Agri-environmental Nudges in Germany

Increasing popularity of economic experiments for policy impact analysis has led to an on-going debate about the suitability of students to substitute professionals as experimental subjects. To date, subject pool effects in agricultural and resource economics experiments have not been sufficiently studied. In order to identify differences and similarities between students and non-students, we carry out an experiment in the form of a multi-period business management game that is adapted to an agri-environmental context. We compare the compliance behaviour of German agricultural students and German farmers with regard to water protection rules and analyse their responses to two different green nudge interventions. The experimental results reveal that the direction of the response to the policy treatments is similar. Even unexpected behaviour could be reproduced by the student sample. Nevertheless, the magnitude of the treatment effects differed between the two samples. This implies that experimenters in the field of agricultural and resource economics could use the subject pool of students to analyse the direction of nudge policies. If predictions should be made about the magnitude effects, we suggest using a professional subject pool.