Herding behavior in the Pakistan stock exchange: Some new insights

This study attempts to examine the presence of herding behavior in the Pakistan Stock Exchange (PSX). The novel contribution of this paper is that it investigates the herding phenomenon from a large number of facets such as herding of firms towards market, herding of firms towards industry portfolios, herding of industry portfolios towards market, herding in mostly traded stocks and in large and small stocks, and herding in the crisis period. For this purpose, we use the herding behavior model of Christie and Huang (1995) on the daily closing prices data of 609 firms listed on the PSX from January 2004 to December 2013. Results show that individual firms do not herd towards market index, except when the market experiences a negative return of 5%. However, when we sort firms into small and large groups based on median market capitalization, results indicate that large firms show herding behavior in extreme market movements. Further, we find that firms in several industries herd towards their industry portfolios. However, we find weak evidence of industry portfolios herding towards the market. We also segregate the impact of financial crisis of 2008 from normal times. These findings support results of our baseline estimation.     

高技术服务业与资源型产业融合对资源型企业两阶段创新效率的影响

基于新技术与新知识的高技术服务业跨界融合是传统企业实现创新资源优化配置、创新研发和商业转化的重要因素。因此，运用熵指数测度全国各省区高技术服务业与资源型产业融合水平，并利用2014—2017年资源型上市公司面板数据检验两大产业融合对资源型企业两阶段创新效率的影响，同时探讨企业吸收能力的调节作用。结果表明：现阶段高技术服务业和资源型产业融合程度不高，但发展态势良好，处于从失调走向协调的转变期；产业融合对资源型企业创新研发效率短期无显著影响，长期存在抑制作用，资源型企业技术能力刚性导致对新技术的排斥，且较大的产业间认知差距削弱了产业间良性互动带来的技术扩散效应；产业融合对创新转化效率呈先抑制、后促进效应，就长期而言，产业融合具有良好的创新转化推动力；资源型企业吸收能力分别在产业融合与滞后一期创新研发效率及滞后三期创新转化效率的关系中起正向、负向调节作用，表明资源型企业吸收能力构建尚不全面。     

知识重叠、知识库特性与创新绩效

以往研究着重探讨重叠/非重叠知识在技术并购中的创新效应，然而在测度知识重叠时仅关注到数量属性而忽略了质量评估。因此，构建一个新的理论框架，利用国家知识产权局2008-2018年专利授权数据，分析217家中国机械制造企业352次国内技术并购案例，探索知识库中重叠、非重叠知识数量和质量属性对并购后创新绩效的影响。结果表明，高质量重叠知识对并购后的企业创新绩效具有正向影响，而高质量非重叠知识则有负向影响。同时，探讨知识数量对并购后创新绩效的影响。研究结果强调了知识重叠对企业获取外部知识的重要性，对企业技术并购实践具有借鉴作用。     

Back to the future. Is industry 4.0 a new tecno-organizational paradigm? Implications for Latin American countries

ABSTRACT

The objective of this article is to establish a dialogue between the recent ‘Industry 4.0’ (I4.0) literature and evolutionary neo-Schumpeterean studies about techno-organizational paradigms. In that direction, we wonder whether I4.0 constitutes a new paradigm, as it is assumed by the first group of literature, or it represents – until the moment – an intensification of key features of the information and communication technology (ICT) paradigm, following the second group of studies. Some questions are raised about the implications of I4.0 for developing countries (DEC), afterwards. Specifically, we reflect on the possibilities of these countries to identify and take advantage of new windows of opportunity, opened by the development and diffusion of these technologies. In this regard, the review of recent Latin American experience raises strong concerns regarding I4.0 as a new source of intra- and international heterogeneity, linked to the severe difficulties these countries have in appropriating these technologies in the form of productivity gains and quasi-rents. It seems that this is partially derived from weak technological, organizational, and connectivity capabilities paths of accumulation between institutions and actors.     

基于钻石模型的滨海新区制造业产业集群发展研究

天津滨海新区升格为国家级综合改革试验区的战略目标,是把以滨海新区为增长极的京津冀打造为环渤海乃至中国北方经济增长的发动机和最具国际竞争力的都市圈。本文借鉴迈克尔·波特的国家竞争优势钻石模型,构建一个地区制造业升级的竞争模型,并借助于这一模型对滨海新区制造业产业集群竞争力进行分析,从而就提升其产业集群竞争力进行了对策探析。     

新中国成立60周年新疆的工业发展回顾与成就

解放前，新疆的工业几乎一片空白。新疆成立后，在国家的大力支持下，新疆工业发展从无到有、从小到大，特别是改革开放三十年，更是新疆工业发展最快、成效最好的时期。本文通过对新疆工业发展历程的回顾，阐述了新疆工业发展取得的显著成就，即逐步形成了以石油天然气开采和石油化工为主导，以纺织、轻工、建材、钢铁、电力为支柱，包含煤炭、食品、机械电子、有色金属等门类较为齐全、产品丰富、特色鲜明的较为完善的现代工业体系。     

行业商会在广东产业转移中阶段性推进作用

集体行动的逻辑在于获取最大限度的集体效率,行业商会比企业无私,比政府节约。本文通过建立阶段性推进模型,探究行业商会在广东产业转移中的推进作用,及其在四个阶段中扮演的角色。     

Regional and Sector-specific Determinants of Industry Dynamics and the Displacement–replacement Effects

In this paper, we empirically assess the importance of regional and sector-specific determinants of industry dynamics. To this aim we test three hypotheses (originally proposed by Shapiro and Khemani (1987, Int J Indust Organ 5:15–26)) for the relationship between the entry and exit of firms: independence, symmetry and simultaneity. Estimates from a panel data system of equations seem to confirm the simultaneity hypothesis for Spain, i.e. we find evidence of a displacement (replacement) effect between the gross rate of entry (exit) and the gross rate of exit (entry). Also, our results show that, irrespective of the hypothesis we use, both sectorial and regional variables affect entry and exit.

Outsourcing and firm performance nexus: An analysis using the conventional and panel double-bootstrap procedure

Industrial performance is an essential element of economic progress. In this study, we examine the impact of outsourcing on industrial performance using the firm-level data of 191 textile companies in India over the period 2000–2015. First, we follow the conventional non-parametric two-stage procedure and analyse the nexus between outsourcing and firm performance under a single-objective setting. We then test the influence of outsourcing on the performance of multiple-objective firms using reverse directional distance function scores. To address the bias in efficiency estimation and the serial correlation issue in the second-stage regression, we use truncated regression and the double-bootstrap procedure for panel data analysis. Our results show an improvement in industrial performance over the study period. Our analysis following the conventional two-stage procedure shows that the outsourcing of manufacturing activities and professional jobs contributes to industrial performance. The relation between outsourcing and firm performance essentially remains the same in a more reliable analysis using a panel double bootstrap procedure.     

我国数字经济发展战略与路径研究--基于国际经验的考察

当前我国经济正处于增速放缓、结构升级及经济发展动力转换的新常态阶段。寻找新的经济增长点和新动能是经济新常态时期的重要任务和目标,而发展数字经济则是目前最优的经济发展模式。2017年数字经济被写入政府工作报告,预示着数字经济作为继农业经济和工业经济发展模式之后的又一新型社会经济发展形态,已成为新常态下中国经济发展的新动能,也是推动我国供给侧结构性改革的重要抓手。但数字经济模式属于新型经济发展模式,目前尚无一个完整的发展参考体系,需要我国自寻探究发展道路。由此,本文在研究数字经济内涵及其战略意义的基础上,基于我国数字经济发展现状和国外发展战略提出了我国数字经济的具体发展路径。