火炮身管寿命预测技术发展研究

火炮身管寿命问题受到了从事火炮研究、设计、生产和使用人员的高度关注。通过概述火炮身管寿命的定义及其预测技术的发展历程,基于火炮身管寿命预测技术已经取得的成果,提出了对大口径火炮身管寿命实施实时动态预测的方法,并对该方法进行了初步的探讨,确定了实现该方法的关键技术所在。     

The complementarity of IT and HRM capabilities for competitive performance: a configurational analysis of manufacturing and industrial service SMEs

ABSTRACT

Building on the resource-based view (RBV) perspective, we analyse the combined effects of two highly-valued organizational resources, namely information technology (IT) capabilities and human resource management (HRM) capabilities, on the competitive performance of small and medium-sized enterprises (SMEs). Three resource configurations are derived from data on 227 SMEs (121 from the manufacturing sector and 106 from the industrial services sector) through a cluster analysis. These resource configurations are labelled IT Capabilities-dominant Configuration (ITC), e-Business Capabilities-dominant Configuration (e-BC), and HRM Capabilities-dominant Configuration (HRC). This last configuration is the best-performing, followed by the e-BC, with the ITC as the worst-performing. The results also show that manufacturing and service firms are very unevenly distributed within HRC and ITC configurations, suggesting notable differences between the two sectors regarding their respective IT and non-IT capability-building. The fact that service SMEs are overwhelmingly represented (93%) in the worst-performing configuration and completely absent (0%) in the most effective configuration while displaying the strongest IT infrastructure capabilities confirms that the IT productivity paradox is aggravated in service SMEs and calls for further research on this issue.     

湖南省小微物流企业服务创新能力评价对策研究

以湖南省小微物流企业服务创新问题为研究基础,聚焦于服务创新的理论;通过对以往的服务创新研究理论成果的总结分析,结合小微物流企业所处的环境特点,分析了小微物流企业服务创新能力影响因素等问题;建立湖南省小微物流企业服务创新能力评价体系对策研究。     

Identification and estimation of nonlinear dynamic panel data models with unobserved covariates

This paper considers nonparametric identification of nonlinear dynamic models for panel data with unobserved covariates. Including such unobserved covariates may control for both the individual-specific unobserved heterogeneity and the endogeneity of the explanatory variables. Without specifying the distribution of the initial condition with the unobserved variables, we show that the models are nonparametrically identified from two periods of the dependent variable _Yit$Y_{it}$ and three periods of the covariate _Xit$X_{it}$. The main identifying assumptions include high-level injectivity restrictions and require that the evolution of the observed covariates depends on the unobserved covariates but not on the lagged dependent variable. We also propose a sieve maximum likelihood estimator (MLE) and focus on two classes of nonlinear dynamic panel data models, i.e., dynamic discrete choice models and dynamic censored models. We present the asymptotic properties of the sieve MLE and investigate the finite sample properties of these sieve-based estimators through a Monte Carlo study. An intertemporal female labor force participation model is estimated as an empirical illustration using a sample from the Panel Study of Income Dynamics (PSID).     

Exploring the reality of educated middle managers' capability and involvement in human resource management in China

Since the recent global financial crisis, human resource management (HRM) policies may be seen more than ever as one of the cornerstones for building an appropriate organizational culture to better promote effort and cooperation between human resource (HR) managers and other middle line-managers. This article is designed to explore the reality of educated middle managers' capability and involvement in HRM in China, given that the concepts of HR roles in general and middle managers in particular are relatively new there. By analysing the results from more than 300 middle managers who had been educated at MBA programmes in different parts of China, our findings, we argue, have important implications for both the HRM literature and management practice in emerging economies.     

资源协奏视角下大数据赋能精益生产的机理研究

数字经济时代下,数据成为关键生产要素,驱动制造企业生产力和生产方式变革.然而,大数据对生产精益化的赋能机理有待深入探讨,特别是从关键生产要素到精益生产绩效之间的作用机理仍旧模糊.基于资源协奏理论和大数据相关理论,以格力电器为案例研究对象,探索大数据赋能制造企业精益生产的内在机理,构建揭开大数据"如何赋能精益生产"暗箱的...     

基于动态层次分析法的企业自主创新能力评价研究

企业是技术创新的主体,提高企业的自主创新能力,在关键技术领域拥有自主知识产权,是企业可持续发展的重要路径。本文选取三家电站锅炉企业作为研究对象,基于对企业自主创新概念的界定,构建针对电站锅炉企业的自主创新能力评价指标体系,采用动态层次分析方法对这三家企业的自主创新能力开展实证评价研究,提出提高电站锅炉企业自主创新能力的政策建议。     

并购能力与价值创造——工商银行连续并购东亚银行的经验证据

国内银行通过海外并购的经验继续并购以实施战略布局和整合资源。但是国内银行进行海外并购的能力和价值创造如何？文章从并购能力出发,从市场反应和财务绩效研究工商银行连续并购东亚银行的价值创造;结果发现,工商银行和东亚银行均跑赢恒指,但工商银行略微跑输上证指数;工行盈利能力稳健,每股经营现金流有所下降,资产负债质量持续上升,偿还债务能力保持合理,融资能力增强,长期看将产生协同效应。最后,为我国商业银行提升并购能力和完善学习机制提出建议。     

时空维度下上海高技术产业创新能力评价研究

技术产业在上海的转型升级中正发挥着举足轻重的作用。文章从上海高技术产业创新能力入手,建立评价指标体系,运用熵值法、层次分析法及变异系数对上海2003-2011年的创新能力进行纵向对比分析,同时对2011年上海及其他沿海省市的创新能力进行横向比较分析。分析结果表明,2003-2011年上海高技术产业创新水平呈现“U”字形变化的趋势,但创新产出能力并不高;在沿海省市中尚不具备明显的创新优势,创新能力低于广东、北京等发达省市。     

External Shocks and High Volatility in Consumption in Low‐Income Countries

According to the well‐known concept of consumption smoothing, the volatility of consumption is low even when income is volatile; this is confirmed by data from G7 countries. Surprisingly, however, consumption volatility in many low‐income countries is nontrivially higher than income volatility. Here I examine what causes high consumption volatility in low‐income countries. In general, volatile consumption makes consumers worse off. Therefore, understanding the causes of high consumption volatility can contribute to improving welfare in low‐income countries by suggesting measures to assist in the stabilization of consumption. Unlike much previous research, I focus on international factors when explaining high consumption volatility. The results suggest that external shocks, which are far more volatile in low‐income countries than in industrialized countries, strongly swing consumption. By capturing these mechanisms, the model I use successfully accounts for consumption volatility's differences between the sample low‐income country and sample industrialized country.