Does it matter where you invest? The impact of foreign direct investments on domestic job creation and destruction

This study examines how foreign direct investment (FDI) affects domestic employment by using unique division-level data of Japanese firms. Contrary to most previous studies focusing on the effect of FDI on net employment growth, we decompose it into job creation (JC) and job destruction (JD) for each individual firm. We find that FDI destination plays an important role: FDI to Asia increases JC, whereas FDI to Europe/North America decreases it; furthermore JD decreases, regardless of FDI destination. A frictional search-and-matching model with heterogeneous jobs can explain the differential effects. The model provides additional predictions on JC and JD by job type, which are also empirically confirmed.     

An emerging market multinational Company's internationalization: From original equipment manufacturer to global brand leader

We examine an emerging market multinational company's (EMNC's) transformation from an original equipment manufacturer (OEM) to an original brand manufacturer (OBM) and global leader. Our longitudinal study of Hisense—China's largest TV company (and the world's third largest) spans three decades and involves detailed interviews with over 50 executives. We study how the company's global value chain network evolved, how it reconfigured its organization, upgraded its capabilities, and enhanced its brand reputation. We develop propositions that may contribute to improved explanations for an EMNC's internationalization sequence, development of competitive advantages, overseas management practices, and brand building.     

Model-free portfolio theory: A rough path approach

Based on a rough path foundation, we develop a model-free approach to stochastic portfolio theory (SPT). Our approach allows to handle significantly more general portfolios compared to previous model-free approaches based on Föllmer integration. Without the assumption of any underlying probabilistic model, we prove a pathwise formula for the relative wealth process, which reduces in the special case of functionally generated portfolios to a pathwise version of the so-called master formula of classical SPT. We show that the appropriately scaled asymptotic growth rate of a far reaching generalization of Cover's universal portfolio based on controlled paths coincides with that of the best retrospectively chosen portfolio within this class. We provide several novel results concerning rough integration, and highlight the advantages of the rough path approach by showing that (nonfunctionally generated) log-optimal portfolios in an ergodic Itô diffusion setting have the same asymptotic growth rate as Cover's universal portfolio and the best retrospectively chosen one.     

Better peers,better scores? A study of twin junior high school graduates in Taiwan

Using data of twin students graduating from junior high schools between 2002 and 2004 in Taiwan, we estimate the effects of peers on high school joint entrance examination performance. To alleviate the potential endogeneity of peer educational achievement, linear models with twin fixed effect and instrumental variables are estimated. Quantile, quantile with twin fixed effect and quantile with instrument variables regressions are also implemented to determine whether estimated peer effects differ at various locations of the testing scores’ conditional distributions. Positive and statistically significant peer effects are found to exist at the mean and at different quantile levels.     

丙泊酚复合利多卡因静脉麻醉在高血压患者结肠镜检查中的应用

目的探讨丙泊酚复合利多卡因静脉麻醉在高血压患者结肠镜检查中的安全性及效果。方法回顾性分析47例高血压患者的结肠镜检查资料,将其分为常规组、无痛组。无痛组静脉缓慢注射丙泊酚和利多卡因混合液,使患者入睡后进镜检查。监测并记录两组在检查前、检查中、检查后的收缩压、舒张压、心率、血氧饱和度及镜检时间。无痛组记录麻醉诱导时间、苏醒时间、计算力及提问对答恢复正常时间。结果无痛组全部到达检查终点,常规组有2例未达到回盲部;无痛组镜检时间明显低于常规组,两组比较差异有统计学意义(P<0.05);无痛组的收缩压、舒张压、心率在检查中较检查前明显下降(P<0.05);常规组收缩压、舒张压、心率在检查中比检查前明显增高(P<0.05);两组检查结束后收缩压、舒张压、心率均恢复至检查前水平;血氧饱和度在两组的各个检查中无明显变化。无痛组麻醉诱导时间为(1.9±0.6)min、清醒时间为(6±5)min,计算力及提问对答恢复正常时间为(6±5)min。结论应用丙泊酚复合利多卡因静脉麻醉对高血压患者进行无痛结肠镜检查是可靠的。     

企业并购的人力资源整合研究

人是企业生产经营活动的主体,企业并购整合中的人员因素对并购的最终成败有着至关重要的影响。人力资源整合相对于其他生产要素的整合而言,涉及的问题既多又复杂,因此,必须以极为慎重的态度进行人力资源的整合。该文分析了并购过程的三个阶段、提出了并购过程中的三个问题,介绍了解决问题的人力资源整合的相关理论,目的在于:针对并购的不同时期,利用相应的人力资源整合理论,探讨问题的一般性解决方案。最后,总结出企业并购中人力资源整合模型。     

HPLC法测定青鹏软膏中亚大黄的含量

目的建立藏药青鹏软膏中亚大黄的三种蒽醌类成分大黄素、大黄酚、大黄素甲醚的高效液相色谱法(HPLC)含量测定方法。方法 WatersC18色谱柱(250mm×4.6mm,5μm),流动相为甲醇-0.1%磷酸(87:13);流速为1.0ml/min,检测波长430nm,柱温为室温。结果大黄素在3.24μg/ml～32.4μg/ml,大黄酚在3.36μg/ml～33.6μg/ml,大黄素甲醚1.78μg/ml～17.8μg/ml浓度范围内均与色谱峰峰面积呈良好的线性关系,相关系数r分别为0.9996、0.9998、0.9991;大黄素、大黄酚、大黄素甲醚的平均回收率分别为98.87%、98.12%、97.67%,RSD分别为1.57%(n=6)、1.81%(n=6)、1.24%(n=6)。结论本方法可同时测定制剂中的大黄素、大黄酚、大黄素甲醚,可用于青鹏软膏的质量控制。     

城郊农村土地高效利用的路径选择——以铜仁市马岩村为例

城市化进程的加快不仅为城市郊区的农村发展带来机遇,更为土地资源高效利用的路径选择带来挑战。马岩村作为铜仁市城市功能转移承接区域,存在着土地资源规划利用不合理、闲置现象严重、土地利用缺乏监管和政策引导以及土地利用效益低下且利益分配不合理等问题。文章基于马岩村的实际情况,结合近年来马岩村土地利用状况,针对土地利用过程中出现的问题,分析合理、高效和科学利用土地资源路径,即提出退耕还林还草、第一和第三产业融合、以大棚基地为依托打造开心农场和构建新的农业经营体系等土地高效利用的举措。文章还就如何快速、深入地促进马岩村土地高效利用的问题,进一步提出坚持规划在前、优化产业结构、合理使用工业用地、制定和扶持承包政策以及正确处理好政府、旅游公司和农户之间的利益分配等具体的建议。通过文章科学例证,以期为城市农村近郊土地利用路径科学选择、提高土地利用效率提供借鉴。     

中国股市与世界其他股市之间的大风险溢出效应

该文分析了中国证券市场A股、B股和H股之间,中国股市与世界其他股票市场之间的极端风险的溢出效应.实证结果表明:A股与B股之间存在着强烈的风险溢出效应,B股大幅下跌的信息可用来预测未来A股大幅下跌的可能性;A股和H股之间,尤其是B股和H股之间也存在着强烈的风险溢出效应;B股,尤其是H股,与世界其他股市之间存在着显著的风险溢出效应;与此相反,A股虽然与韩国、新加坡股市之间存在着一定的风险溢出效应,但它与日本、美国和德国等世界主要股市之间不存在任何风险溢出效应.     

工程监督网络一体化集成管理功能探析

通过分析推进工程监督管理制度化、规范化和科学化过程中所表现出的现状特点,进一步提高监督执行力,解决在目前体制下工程监督管理所面临的难题和挑战,需要将监督人员管理和现场工程项目内容管理有机统一起来．构建一个适用的工程监督管理平台,形成工程监督网络一体化集成管理模式。阐述了这一平台所需完善的闭环管理、集成管理、动态管理、网络化培训、自助管理和数量化动态考核等功能。