基于遗传算法的抽指加权叉指换能器进化设计

提出了极性抽指加权叉指换能器设计的新方法，克服了传统设计方法的繁杂性。将极性抽指加权叉指换能器作为染色体，通过独特的（-1，1）的二值编码，以目标频率响应曲线和待进化的叉指换能器频率响应曲线在考虑的频率范围内的1601个采样点的误差值为进化目标，对种群中的染色体进行选择、交叉和变异等遗传操作，自动进化出符合目标要求的极性抽指加权叉指换能器极性加权状况。进化实验结果表明，应用本文提出的进化方法设计出的极性抽指加权叉指换能器的频响曲线与目标频响曲线基本重合，达到设计要求，进化设计方法效率高，实用性强。     

风险承载力、政策规制对宅基地退出意愿的影响研究 ——基于拓展计划行为理论的分析框架

研究目的：基于拓展计划行为理论探究风险承载力与政策规制对宅基地退出意愿作用机理的区域差异，以期寻求差异化的宅基地退出方案。研究方法：结构方程模型。研究结果：（1）风险承载力对宅基地退出意愿的影响符合倒“U”型特征。（2）政策规制对宅基地退出意愿的影响存在异质性。引导性规范在政策规制对退出意愿激励时占主导，而模范性规范在政策规制对退出意愿约束时占主导。（3）宿迁风险承载力对宅基地退出意愿的影响路径包括直接正向影响和以行为态度、知觉行为控制为中介的间接正向影响，政策规制是退出意愿的负向指标。徐州风险承载力、政策规制均对退出意愿有正向影响。苏州风险承载力位于负反馈阶段，政策规制正向影响退出意愿。常州风险承载力对退出意愿负向影响，政策规制对退出意愿的影响路径包括直接负向影响和以行为态度、主观规范为中介的间接负向影响。研究结论：政府应制定差异化的宅基地退出程序，完善风险补偿机制，强化农户风险意识，充分考虑农户利益诉求，遵循间接引导性的行动逻辑，促进宅基地退出意愿向行为的转化。     

农村宅基地流转收益分配研究综述与展望

目的 促进农村宅基地流转收益合理分配，对于增加农民财产性收益，助推农民实现共同富裕有重要意义。系统梳理近15年宅基地流转收益分配研究的研究热点以及发展脉络，展望未来研究重点方向。方法 文章基于CiteSpace5.8.R2的文献计量法。结果 （1）近15年来，农村宅基地流转收益分配的研究呈现由单一维度分配路径研究，向探讨收益形成机理、分配主体、分配比例、分配模式等多维度研究发展趋势，研究方法也由单一定性分析向定性与定量相结合方式转变。（2）从收益形成机理看，宅基地流转收益增值的本质是地租的增加；直接性投资、外部辐射以及土地用途变化等因素都均会引发宅基地价值增值。（3）从收益分配主体看，地方政府是否应参与分配存在一定争议。从分配比例看，宅基地流转收益分配比例应与各利益主体承担的风险相对应；由于农民在流转过程承担风险更高，因而在进行收益分配时应可适当向农民倾斜。（4）从收益模式看，总体可将宅基地流转收益分配模式总结为“宅基地出租模式”“宅基地入股模式”和“‘指标’交易模式”3类。结论 宅基地流转收益分配是增加农民财产性收入，实现共同富裕的重要抓手。新形势下，未来研究应更加关注宅基地流转收益分配和共同富裕关系，“三权分置”改革背景下的宅基地流转收益分配制度的建立和监督机制完善等方面问题。     

农村宅基地“三权分置”研究演进与趋势

目的 农村宅基地所有权、资格权、使用权的“三权分置”改革是新一轮农村宅基地制度改革的重要探索，是解决当前农村土地内卷化的重要途径。系统研究宅基地“三权分置”的内在逻辑、实现路径对于相关政策制定具有重要的启示作用和现实意义。方法 文章运用CiteSpace软件对2010—2020年中国知网收录的“宅基地“三权分置””主题的论文作者、研究机构、关键词以及关键词聚类进行可视化分析，探讨宅基地“三权分置”研究领域的前沿热点。结果 现阶段宅基地“三权分置”研究热点聚焦于“宅基地使用权”“宅基地流转”“增量权能”与“宅基地制度改革”等方面。结论 梳理现有宅基地“三权分置”矛盾困境与实现路径，重点探讨“三权分置”改革下宅基地使用权流转问题，挖掘宅基地制度改革对社会经济发展的深远影响。宅基地“三权分置”试点改革地区经验总结、对乡村振兴战略动态作用机理是下一步研究重点。     

社会拥挤对游客消费行为的影响

通过文献分析法和问卷调查法建立概念模型和数据收集，利用结构方程模型检验3个不同类型（自然观光类、文化主题类、演艺主题类）景区的社会拥挤对游客消费行为（退缩行为、补偿性消费和体验性消费）的影响及其差异。研究表明：①相对于演艺主题类景区，文化主题类的社会拥挤更容易引起游客退缩行为，而相对于文化主题类景区，自然观光类景区的社会拥挤更容易引起游客退缩行为；相对于演艺主题类景区，自然观光类景区更容易引起游客补偿性消费行为；相对于自然观光类景区，文化主题类景区的社会拥挤更容易引起游客补偿性消费；社会拥挤对游客的体验性消费没有显著影响。②情绪智力显著中介社会拥挤与游客退缩行为和补偿性消费的关系；但情绪智力无法中介景区拥挤对游客体验性消费的影响，以此解释了中国游客“热衷排队”的现实悖论。研究可为景区容量管理及游客体验质量提升提供一定理论支持和贡献。     

The impact of Chinese government promoted homestead transfer on labor migration and household's well-being: A study in three rural areas

The rural homestead transfers (RHT) promoted by the Chinese government in the recent years have resulted in major economic and landscape changes in the countryside and profound impacts on the households’ well-beings. Our paper aims to explain the complex relation between RHT, labor migration and households’ well-beings, based on a survey about three pilot rural areas (Changyuan, Yiwu and Wujin, in the Henan, Zhejiang and Jiangsu Provinces). The results found that the transfer has directly influenced the farmers’ income status, and indirectly through labors’ migration. RHT had a positive impact on their residential environment, and poorly improved their social security. It has improved the living standard of the households, positively influenced the farmers’ psychological state, and had very limited influence on their political participation and freedom.     

Expatriates on the run: The psychological effects of the COVID-19 pandemic on expatriates’ host country withdrawal intentions

Extant research on expatriation in high-stress environments where stress is caused by ongoing and unexpected natural crises remains limited. Drawing on stress theory, in this study, we develop a model to examine the stress-inducing effects of intra-family concerns and workplace discrimination on the intentions to leave the host country among expatriates in the high-stress environment of the ongoing COVID-19 pandemic. We also explore whether gender and the level of work adjustment moderate the propensity of intra-family health concerns and workplace discrimination to induce psychological stress. Based on our analysis of 381 expatriates living and working in the United Arab Emirates, we find the model to be generally supported. We also reveal an intriguing moderating effect of work adjustment on the relationship between intra-family health concerns and psychological stress. Overall, the analysis is among the first ones to shed light on the role of natural crises’ stressors in defining expatriate outcomes.     

Does political propaganda matter in mitigating climate change? Insights from the United States of America

Some research on climate change has been the basis of climate change denialism (hereafter, CCD is used to refer to denial, denialism, and deniers). There is formative knowledge about the role of political propaganda in climate policies and resulting outcomes. To contribute to the understanding of political ideology and the extent of CCD, we adopt econometric techniques to study the impact of the United States of America's withdrawal from the Paris Agreement. The results show that ideological political propaganda has psychological and philosophical consequences that impact climate change policies. In addition, we find that the effect of a state's economic growth on climate change is mediated by CCD. In particular, low-income capitalist states have a higher propensity to become CCDs because they are more likely to engage in economic expansion even at the expense of environmental sustainability. Global climate change policies depend on high-income nations and industries' willingness to adopt economic policies to achieve sustainable future development. Thus, this study fills the literature gap on the relationship between political ideology and climate change. The findings show that CCD significantly influences voting patterns and socioeconomic outcomes. It impedes states from achieving net-zero emissions and carbon neutrality and it is used as a political propaganda. Subject to these findings, relevant policy suggestions are offered.     

The vanishing searches and audit fees: Evidence from Google's withdrawal from China

I investigate the impact of the disruption of free information access via search engines on audit fees using a quasi-natural experiment provided by Google's withdrawal from China. Employing a difference-in-differences design, I document an increase in audit fees for firms with overseas business relative to firms without overseas business after Google's withdrawal. The results are robust to matched samples, placebo tests, alternative specifications, excluding alternative explanations and different event windows. This trend in audit fees suggests that Google's withdrawal hampers firms' foreign information streams and increases audit risk and audit effort. Consistent with this argument, after Google's withdrawal, firms with overseas business conduct more earnings management, pay more abnormal audit fees and experience longer audit report lags. Furthermore, the increase in audit fees is greater for firms with poor information environments, more retail investors or non-Big 4 auditors. My findings suggest a potential auditing cost of restricting the free flow of public foreign information about firms.     

重庆宅基地退出中农民土地收益保护研究 ——基于比较收益的视角

研究目的:基于理论收益与实际收益比较收益的视角,分析农民退地收益是否存在损失,探讨重庆宅基地退出中农民土地收益保护问题。研究方法:基于重庆市现行的宅基地退出补偿政策,构建退地收益理论模型与实际收益模型,结合实证分别测算农民退地的理论收益与实际收益,计算比较收益,分析农民退地收益是否存在损失。研究结果:(1)理论分析与实证验证均表明,重庆市农民退地比较收益(R_(农民理论)-R_(农民实际))大于零;说明现行政策下,重庆宅基地退出中农民面临土地收益损失。(2)重庆市农民退地理论总收益为21.44万元/亩,实际总收益为14.81万元/亩,农民退地比较收益(收益损失)为6.63万元/亩;退地补偿偏低是造成农民退地收益受损的主要因素,而复垦成本偏高则是造成农民退地收益损失的次要因素。(3)不同区位区县农民退地比较收益(收益损失)存在差异,区位条件与农民退地比较收益(收益损失)呈现反相关,区位条件好的地区农民退地比较收益(收益损失)更大。研究结论:应从提高宅基地补偿标准、强化宅基地复垦成本控制,实施区域差异化退地补偿与复垦成本拨付措施等方面完善现行的宅基地退出复垦补偿政策,保护退地农民合法土地收益。