自贸区建设对污染企业全要素生产率的影响

基于中国自贸区试点这一准自然实验，利用企业和省份层面的数据，选择多时点双重差分法、三重差分法、PSM-DID法、异质性处理效应分析以及稳健性检验等方法，考察自贸区政策显对重污染企业全要素生产率的作用效果。研究发现：自贸区建设显著提高了重污染企业全要素生产率，且效应滞后两年后逐年递增。机制分析表明，自贸区设立主要通过融资约束、国有资本占比等途径作用于全要素生产率。异质性分析表明，东部企业、非国有企业和控制权多元化企业对自贸区建设更加敏感。结合断点回归进一步分析，集中供暖背景下，企业之间的南北差异会影响到自贸区的处理效应。自贸区建设对北方内陆地区污染企业的全要素生产率促进作用更大。研究对扩大中国对外开放水平、完善自贸区政策体系有重要意义。     

Double devaluations: Class,value and the rise of the right in the Global North

This article builds on the contributions of anthropologists of Europe in discovering, tracing and explaining the neo-nationalist ascendancy of the last 20 years. It picks up on earlier publications to make a succinct case for a decidedly anthropological class analysis of this worldwide and world-shaking phenomenon, with a view mainly on Europe and the United States. It suggests the usefulness of a notion of ‘double devaluation’ in understanding and explaining recent rightward shifts in popular politics in the Global North, encompassing both rural and urban spaces.     

Diet diversity,malnutrition and health: Evidence from Kenya

We investigate the effects of diet diversity on health outcomes indicated by the body-mass index (BMI) of Kenyan women in their reproductive age (15–49 years). We estimate the demand for diet diversity (which is a proxy for diet quality) and analyse its relationship with BMI by allowing the effect of diet diversity to vary along the conditional BMI distribution. Results show that diet diversity is associated with a beneficial effect on the lower and upper tails of the BMI distribution, that is, dietary diversity improves BMI for underweight individuals while, at the same time, it reduces BMI for overweight/obese individuals. Specifically, doubling the diet diversity is associated with a 14.7% increase in BMI for underweight women and a 7.0% reduction in BMI of obese women. These results support the hypothesis that diet diversity is associated with optimal BMI and, thus, better health, contributing to the policy discourse concerning the double burden of malnutrition in developing countries.     

When Do Firms Adjust Bonus Targets Intrayear? Evidence from Sales Executives' Targets*

This study investigates when and why intrayear bonus target revisions occur. This is important as intrayear target revisions occur regularly in practice but are not well understood. Specifically, we analyze two potential drivers of intrayear bonus target revisions: reduced managerial incentives owing to managers dropping out of the incentive zone of their piecewise defined bonus function and potential spillovers from planning target revisions that reflect changes in performance expectations during the year. We also investigate the effects of organizational characteristics on intrayear bonus target revisions. Using data collected from sales executives via multiple waves of surveys, we find evidence for both predicted drivers. In addition, consistent with our predictions, we find that the levels of delegated decision authority, intrafirm interdependencies, and information asymmetry negatively moderate the positive association between reduced managerial incentives and revision likelihood. Our paper contributes to the target setting literature by being the first study to investigate intrayear bonus target revisions and shed light on when firms commit to not revising such targets intrayear.     

国家审计推动经济双循环发展的效应与路径研究

基于30个省区市的面板数据，研究国家审计与经济双循环之间的关系，分析国家审计的揭示功能、抵御功能、预防功能对经济内循环、外循环、双循环耦合协调质量的影响。研究结果显示：国家审计“免疫功能”与内循环、外循环、双循环耦合协调质量呈正相关关系，国家审计的揭示功能、抵御功能、预防功能有助于经济内循环、外循环、双循环发展。此外，国家审计对经济双循环发展的影响存在空间效应，政府预算支出完成度起着中介作用，市场化程度起着正向调节作用，同时国家审计对经济双循环发展的影响还存在地区异质性。在引入政府债务审计后研究发现，政府债务审计同样促进了经济双循环发展。     

Mitigating the Influence of Analysts Who Issue Aggressive Stock Price Targets: The Role of Joint Versus Separate Evaluation*

Investors frequently rely on individual analysts' stock price targets. Aggressive price targets often reflect analysts' attempts to strategically influence investors. Therefore, investors' welfare may be compromised if they take aggressive price targets at face value. In this study, we examine conditions under which investors are more likely to infer that analysts who issue aggressive price targets are acting strategically. Investors can evaluate multiple analysts' price targets with or without other related information (e.g., earnings estimates). Investors can also evaluate the information provided by multiple analysts jointly or separately one analyst at a time. Two experiments find that as predicted, when investors evaluate multiple analysts' price targets without earnings estimates, there is no difference in investors' perceptions about whether the aggressive analyst is acting strategically across joint versus separate evaluation. However, also as predicted, when investors evaluate multiple analysts' price targets along with their earnings estimates, investors perceive the aggressive analyst as acting more strategically under joint evaluation than under separate evaluation. Our findings suggest that jointly evaluating multiple analysts' price targets with other related information, such as earnings estimates, can reduce the likelihood that investors would be overly influenced by aggressive analysts.     

大职教观视域下的思政教育重点与路径探析

全面推动大职教背景下的大思政融合,是贯彻习近平总书记对职教工作和职教会议精神指示的重要举措。立足时代特点与职教需求,亟需进行大职教观背景下的大思政融合。笔者汲取黄炎培“大职业教育主义”思想精髓,整合研究出注重外部适应性、内部延展性和内外互通性三维有机一体的大职教观。从大职教观视域下思政教育的三重逻辑即时代逻辑、价值逻辑与问题逻辑入手,提出大职教观视域下的思政教育应树立技中有德、借技养德、以德促技的思维方式,从以下三个方面进行实践:顶层设计,全局谋划,树立大思政观融入职教的全过程;回望传统,照亮未来,借鉴传统文化德才观,进行思政职教融合;深化产教融合,创新教学理念,突出素质教育。     

双侧壁导坑法隧道施工方案优化研究

以武汉某排水通道工程为工程背景，运用有限元分析软件Plaxis3D，对双侧壁导坑法隧道的施工过程开展数值模拟，重点分析不同循环开挖进尺、不同工序对隧道开挖过程中的变形响应及地表变形规律，优化双侧壁导坑法隧道施工方案。计算结果表明：循环进尺为4 m时计算得到的地表沉降值及拱顶沉降值显著大于循环进尺为1 m和2 m时的对应值。施工顺序1(Ⅰ→Ⅱ→Ⅲ→Ⅳ→Ⅴ→Ⅵ)较施工顺序2(Ⅰ→Ⅲ→Ⅱ→Ⅳ→Ⅴ→Ⅵ)对地层扰动影响更小。对比计算结果，综合考虑施工安全及施工效率的因素，建议隧道的循环进尺取2 m，施工工序采用顺序1(Ⅰ→Ⅱ→Ⅲ→Ⅳ→Ⅴ→Ⅵ)。该研究可为武汉地区相似地层环境条件下的暗挖隧道工程提供设计参考。     

宽带信号数字信道化及跨信道重构侦测技术

针对在无源探测大带宽信号的过程中会产生跨信道失真问题，提出了一种跨信道可重构的信道化方法。首先经过均匀滤波器组粗滤波，再引入检测时间自适应的双门限能量检测机制，对粗滤波信号进行跨信道判决，之后对各个跨信道信号分别进行可重构信道化设计，从而恢复出原始信号。与传统的数字信道化方法相比，该算法能够更新能量检测门限对跨信道信号进行实时判决，对跨信道信号的重构准确率高于98.3%，实现了对跨子信道带宽信号的近似无失真重构。Matlab仿真结果验证了算法的有效性。     

中国农业走出去的基本特征、问题与建议

目的 通过分析中国农业走出去的基本情况，总结归纳当前中国农业走出去基本特征和进一步发展的主要问题，并根据主要农产品（农资）国内市场需求程度以及推动走出去的作用，分类给出针对性政策建议。方法 文章运用描述性统计和交叉分析方法，基于对外农业投资数据，结合中国农业走出去在投资区域、投资产业、投资主体和投资方式上的基本特征，分析限制中国农业走出去水平进一步提升的主要问题。结果 中国农业走出去的主要问题表现为：原料进口高度集中且不稳定，经贸摩擦频繁发生；农业走出去企业将强未强，投资产业链短且处于低端；产能转移产业大而不强，科技含量低；内外政策衔接不畅，部门间政策不协调等四方面。结论 因此，建议分类施策，针对直接消费型进口农产品应进一步开放市场，合理预测市场缺口，利用国内市场规模优势培育大型跨国企业；针对原料进口型农产品应推动内外市场产业链对接，加强政策试验，升级“三区”打造总部基地；针对产能转移型农产品应以科技创新为突破点，提高服务贸易的助推剂作用，推动产业阶梯转移促国内高质量发展。