产业集成化:产业组织结构演进新趋势

本文基于信息时代背景下，研究我国产业如何实现国际化战略问题。引入了集成思想，以产业为‘‘轴线”，运用超边际分析方法和演化经济学理论，指出“产业集成”发挥了市场最重要的功能，改变了传统产业分工模式和产业国际化发展路径，在一定程度上突破了要素框架为主的产业发展方式，对产业关系做出新判断，对产业趋势和特点给出新解释，揭示了新全球主义时代市场新“游戏规则”。     

螺杆泵试验转速和黏度对水力特性检测的影响

螺杆泵水力特性检测．一方面可以为螺杆泵科研项目的研究开发提供依据,另一方面可以实现产品质量检验,控制不合格品进入市场？应用螺杆泵水力特性检测装置,开展了水力特性试验并对实验结果进行了转速、黏度校正。通过对校正前后的结果对比分析表明：螺杆泵的试验转速、试验介质黏度偏差对螺杆泵水力特性参数如排量、客积效率、轴功率、总效率存在影响且不可忽略．并随泵型增大而偏差越来越大．在水力特性检测中应给予足够的重视：提出了校正方法。     

上海市人口老龄化与养老服务体系建设

21世纪上半叶,上海市户籍老年人养老服务需求增长速度将明显在快于老年人口数增长速度。本文在概括近年来上海市按＂9073＂养老服务格局要求加快养老服务体系建设的基础上,提出了相应对策和建议,认为上海市应按适度比例增加养老机构床位数,完善养老服务优惠政策,加强对亲属或民间保姆照顾的支持,重视老年人心灵关爱等,更进一步地搞好养老服务体系的建设。     

中国农村劳动力流动对产业梯度转移的影响探析

中国农村低成本劳动力大规模流入城市,使得城市低梯度产业能够继续留在城市发展,阻碍了产业梯度顺利自发转移,从而进一步加剧了城乡收入差距。对我国城市化与农业就业结构滞后现状的分析表明,产业梯度转移困难是我国典型城乡制度分层的结果。     

韩国应对气候灾害的机制与启示

韩国也是气候灾害多发国家,政府采取了一系列应对措施.目前,韩国已颁布20多部有关法规,并建立起从中央到地方再到基层三级应对机制.重视法规建设和应对机制建设是其两大特点,这或许对我们有一定的启示.     

基于Anylogic的五阶供应链仿真建模与分析

对多阶供应链进行仿真建模能够分析供应链的复杂特征。文章研究了在Anylogic软件上的五阶供应链建模与仿真实现方法,并对仿真结果进行了分析。运行仿真模型,能够可视化地研究供应链的动态变化,并对不同的输入变量对供应链的影响进行衡量,分析牛鞭效应的强度等,为企业提供决策支持。     

Material and nonmaterial impacts of the COVID-19 pandemic: Evidence from a low-income country

How have COVID-19-related restrictions affected consumption levels and life satisfaction in low-income countries? We conducted phone surveys with 577 households in Liberia to compare consumption patterns across three points in time: November 2019 (pre-COVID-19), May 2020 (short term), and September 2020 (medium term). This article analyzes the impacts of the Covid-19 pandemic and the related restrictions on food and nonfood consumption, which we categorize as “material” welfare and life satisfaction, which we categorize as “nonmaterial” welfare. We find differences between food and nonfood consumption patterns under pandemic conditions. In particular, consumption by households dependent on food and labor markets was negatively affected by the pandemic. In terms of life satisfaction, we find that most respondents perceived their lives to have worsened due to the pandemic.     

Corporate tax avoidance and corporate financialization: The moderating effect of managerial myopia

The purpose of this paper is to investigate whether managers with tax avoidance motivation also engage in corporate financialization. Using a large sample of Chinese A-share non-financial listed firms from 2009 to 2020, the empirical results show that there is a positive association between corporate tax avoidance and corporate financialization. Moreover, the positive effect of tax avoidance on corporate financialization mainly manifests in firms with myopic managers. Our results are robust to alternative measures of both tax avoidance and managerial myopia. Two-stage least squares (2SLS) regression and propensity score matching (PSM) confirm our results and mitigate any potential endogeneity issues. Overall, we show that the agency costs between shareholders and managers indeed play a critical role between tax avoidance and corporate financialization.