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71.
新冠肺炎疫情发生后,个人、组织和社团、企业等都参与到全球采购的大军中,并且体现出各自的特点和重要意义,我国的国际贸易采购、国际综合物流能力在国际应急采购中得到检验。在现代信息技术和互联网广泛应用的时代,线上组织和实施应急采购和物流运输既为国际应急采购管理带来挑战,同时也带来了机会。本文通过分析疫情下国际物资采购的数据,总结紧急防疫国际采购多样化的特点,并针对互联网环境下信用体系的扩展以及包括采购、贸易、物流、人才积累等综合能力的发展,初步分析其对国际应急采购的影响。 相似文献
72.
针对多源信号关联难度大、关联准确率低的问题,利用同一目标平台上搭载的多个辐射源信号具有一致的动态变化趋势这一特点,提出一种利用相位差特征的多源信号关联方法。已知阵列形式和侦测点位置,通过对侦收到的多个辐射源信号进行处理,获取相位差信息并累积形成相位差变化趋势;对比提取疑似相似段,根据相似性判决策略进行有效关联。该方法能有效避免不同传感器对位置测量的误差影响,相比传统基于位置信息关联的方法,能有效提升关联准确率。仿真和实测数据分析证明了该方法的有效性,在阵列形式和侦测点位置已知的条件下该方法具有重要工程意义。 相似文献
73.
China introduced employee stock ownership plans (ESOPs) in 1992 purely as an employee incentive scheme. The government initiated the policy experiment on ESOPs as part of China’s reform of its state-owned enterprises, and it was abruptly terminated 2 years after initiation. This policy experiment resulted in an exogenous sample of ESOPs that allows us to provide the first evidence from Chinese firms on the performance-ESOP relation. After examining a variety of performance measures, including ROA, ROE, Tobin’s q, and productivity, we find little difference in performance between ESOP firms and non-ESOP firms. 相似文献
74.
Despite both being developing countries, China and India have markedly contrasting patterns in their use and targeting of antidumping (AD) measures. We explore the factors driving AD use by these two countries, considering in turn macroeconomic, strategic and other determinants. We find more regular or systematic features of AD use by China, while India displays a less systematic pattern of AD use. Economic growth, AD club effect and free trade agreement participation are shown to constrain AD use by China. Compared to India, AD use by China is also more sensitive across industries. Furthermore, China targets developed countries more than developing countries, while India is less discriminating with respect to the country type it targets. 相似文献
75.
76.
Feiqiong Chen Fei Li Qiaoshuang Meng 《Technology Analysis & Strategic Management》2017,29(9):1002-1014
In this paper, we examine the match between resource relatedness and post-merger integration on technology innovation of acquiring firms to find the rationale behind technology-sourcing cross-border mergers and acquisitions (M&As) of Chinese multinational enterprises. Using a sample of 88 Chinese technology-sourcing cross-border M&As, we find that the acquirer will improve technology innovation when greater resource similarity between the acquirer and target firms is matched with a high integration degree and a low target autonomy level. Meanwhile, the acquirer can improve technology innovation when greater resource complementarity is matched with a low level of integration degree in technology-sourcing cross-border M&As. This paper provides the acquiring firms with fresh ideas of how to make the integration decisions of technology-sourcing overseas M&As. We hope to help multinational enterprises to achieve more outstanding technology innovation performance through technology-sourcing overseas M&As in an intense global competitive environment. 相似文献
77.
本文基于“中国社会态度与社会发展状况调查”2014年的数据,从奖酬模型、工作要求-控制模型两个工作压力经典模型出发,考察了互联网技术轻度嵌入群体和重度嵌入群体在工作压力作用机制方面的异同.研究结果表明相较于轻度嵌入群体,互联网技术重度嵌入群体具有更高的群体同质性—以受过高等教育的未婚青年为主,更有可能承担高水平的工作压力,且工作压力作用机制具有一定的特点.如传统上具有一定缓解作用的奖酬模型不再显著;在工作要求-控制模型中,本应具有正向作用的团队合作因其带来额外的情感劳动而成为提升压力感的变量,仅有灵活工作时间仍然有利于劳动者工作压力的缓解.这意味着随着互联网技术的深入引入,工作的方式方法和内在机制都在发生变化. 相似文献
78.
本轮经济危机将长期以来我国产业结构中存在的一些突出问题充分暴露出来,调结构成了危机后的一致呼声。在影响我国产业结构调整的众多因素中,收入分配结构的失调和自主创新能力的不足是两个主要的方面。前者会通过对国内消费需求的抑制,需求结构的影响及要素价格的扭曲而制约产业结构的调整;后者则会造成核心产业和核心技术的缺失,使产业结构固化在低水平状态,失去升级的动力。 相似文献
79.
Annika Meng 《The German Economic Review》2012,13(3):307-330
The probability of providing informal care grows with one's own age. While labor market effects due to caregiving are moderate, they could be concentrated in the years close to retirement. Therefore, I investigate whether care in the previous year leads to retirement in the year after by using German Socio‐Economic Panel data from 2001 to 2009 and discrete‐time hazard models. The effect of care on the retirement decision is indeed much higher than its effect on the labor or working hours of middle‐aged individuals. Women are affected to a larger extent but the retirement decision of men also reacts to their caregiving obligations. 相似文献
80.
Der-Horng Lee Meng Dong 《Transportation Research Part E: Logistics and Transportation Review》2009,45(1):61-71
The design of reverse logistics network has attracted growing attention with the stringent pressures from environmental and social requirements. In general, decisions about reverse logistics network configurations are made on a long-term basis and factors influencing such reverse logistics network design may also vary over time. This paper proposes dynamic location and allocation models to cope with such issues. A two-stage stochastic programming model is further developed by which a deterministic model for multiperiod reverse logistics network design can be extended to account for the uncertainties. A solution approach integrating a recently proposed sampling method with a heuristic algorithm is also proposed in this research. A numerical experiment is presented to demonstrate the significance of the developed stochastic model as well as the efficiency of the proposed solution method. 相似文献