An Application of the Dynamic Network DEA Model: The Case of Banks in Taiwan

ABSTRACT

In this study, we apply the dynamic network slack-based measure data envelopment analysis model (DNSBM) to measure the efficiency of Taiwanese banks during the period 2005–11. Using the network structure, we define intellectual capital creation capability as one of the production stages. In order to capture the dynamics of the transformation process, the nonperforming loans and loan loss reserves are defined as carryover items. This study offers sufficient information for managers to understand not only the overall performance of their banks but also the efficiency of each production stage and the dynamic changes of the overall and divisional efficiencies.     

High‐performance work systems and workplace performance in small,medium‐sized and large firms

This article draws on the Organisational Growth and Development (OGD) life cycle model to explore the relationship between high‐performance work systems (HPWS) and performance in firms of different size, thereby extending understanding of congruence or ‘best fit’ theory within strategic HRM debates. With reference to management control theory, economies of scale and the availability of specialist managerial skills, the article hypothesises that while an HPWS–performance relationship might exist in small, medium‐sized and large firms, the relationship will be stronger in large firms than in both small and medium‐sized firms, and stronger in medium‐sized firms than in small firms. Analysis of data from the British Workplace Employment Relations Survey demonstrates, however, that there is no association between HPWS and workplace performance in medium‐sized firms, in contrast to the positive relationship between HPWS and performance found in large firms and between HPWS and labour productivity in small firms.     

The Impact of Position Difference on Employees’ Organizational Commitment After the Merger of Life Insurance Companies

We investigate the impacts of job position and survey time period on employee’s organizational commitment of insurance company after the merger. Our results show that both job position and survey time period are significant determinants to employee’s organizational commitment. Results also show that there is no interaction effect between survey time period and job position. For each year, during the survey time period, the mean of organization commitment of agent employees is significantly higher than staff employees. The mean difference of organizational commitment between agent and staff employees shrank year by year during the survey time period.     

Does Interindustry and Intraindustry Information Help Predict Financial Distress?

This study investigates whether and how the accounting ratios of peer firms within the same industry (the industry peers) or firms within the industry of their customers (the downstream peers) help improve the predictability of sample firm financial distress. We document that the Z‐score factors of the companies with high correlation in stock returns help predict financial distress. The results show that accounting‐based ratios of the industry peers and the downstream peers enhance the accuracy of early warnings of financial distress, especially when prior returns of peer firms are highly correlated with the sample firm.     

Does Social Media Get Your Attention?

The author investigates how social media affects stock prices and post–earnings announcement drift in response to companies’ quarterly earnings announcements. Using quarterly earnings data as well Twitter and StockTwits data, the author utilizes Twitter volume and a residual methodology to generate an attention proxy that is orthogonal to the growth of Twitter accounts. The author finds that the new attention brought by social media after the earnings announcements positively affects the cumulative abnormal returns. Further, even companies reporting bad news can still have positive immediate cumulative abnormal returns if they attract enough attention from investors after an earnings announcement. The new attention effects are different in both magnitudes and statistical significance between social media popular and unpopular industries.     

Time-consistent mean–variance asset-liability management in a regime-switching jump-diffusion market

Financial Markets and Portfolio Management - This paper investigates the time-consistent optimal control of a mean–variance asset-liability management problem in a regime-switching...     

Entrepreneurship and industrial clusters: evidence from China industrial census

Small Business Economics - This article studies the synergy effect of entrepreneurship on China’s industrial cluster. We propose an extension to Duranton and Overman’s (The Review of...     

多地生产型船企物资配送存在的风险问题及其对策研究

通过对造船企业的生产特点以及物资配送现状的分析,从物资入库验收、生产计划调整、物资配送过程、资源配置要求及余料统筹利用等多方面反映了多地生产型船企物资配送目前存在的主要问题与风险,并提出相应的对策。     

异质性媒体与资本市场信息效率

新闻传媒通过其信息处理和传播功能 ,对资本市场的信息整合产生了重要影响.不同于以往的研究 ,文章深入新闻传媒行业内部 ,探讨了不同类别的媒体(中央媒体与各地方媒体)对中国资本市场信息效率的差异化影响.研究发现:中央媒体既可以直接提升资本市场信息效率 ,又可以通过削弱政治关联对资本市场信息整合的不利影响,间接改善资本市场信息效率;地方媒体虽然能够直接提升资本市场信息效率 ,但是无力削弱政治关联对资本市场信息整合的不利影响 ,其间接渠道并不起作用.这一结果考虑了媒体跟踪上市公司时可能产生的内生性问题 ,在一系列稳健性测试中始终存在.文章认为 ,相对于地方媒体 ,中央媒体在信息透明度较低情况下的信息获取和处理的能力优势 ,以及面对政治关联时保持客观报道的独立性优势,可以解释这一发现.     

舾装作业中考虑周期驱动的虚拟单元多阶段动态调度研究

多品种小批量离散型生产企业面临的大量不确定因素会干扰其生产的连续性,其中,船舶生产由于其技术与管理特点在此类生产中具有典型性.本文将以船舶舾装生产为例,在保证设备负荷均衡及资源利用率的基础上,研究该环节的虚拟单元调度问题,以提高企业的生产效率.文章以最小运输距离为目标,在充分考虑瓶颈资源约束的基础上,构建周期驱动下分割计划期的数学模型,并以结合任务分配和时间约束的混合蚁群算法求解.通过在某船厂舾装环节的应用发现,本文所提方法能够有效降低当前舾装各作业的平均完成时间,具备可行性.