Strategic groups as reference groups: Theory,modeling and empirical examination of industry and competitive strategy

Previous studies on strategic groups have mainly focused on their static characteristics in order to test the theory of strategic groups and intraindustry performance differences (Porter, 1979; Cool and Schendel, 1988; Fiegenbaum and Thomas, 1990). In contrast, this study takes a longitudinal, dynamic perspective and describes the forces driving strategic group membership and structural evolution. It proposes that a strategic group acts as a reference point for group members in formulating competitive strategy. A partial adjustment model of strategic mobility is then developed which incorporates the idea of a strategic group as a reference group. It models strategic change in an industry both within and across strategic groups. The model is tested in the context of an in-depth industry analysis of the more significant firms in the insurance industry over the 1970-84 time period. The results suggest that strategic groups act as reference points for firm strategies and that predictions of future firm strategies and industry/group structures may also be successfully derived.     

青藏铁路施工与环境保护

文章详细介绍了青藏铁路施工对环境保护的影响,指出了强化青藏铁路环境保护工作的意义,提出了青藏铁路环境保护工作的主要内容和应当采取的措施,阐述了将青藏铁路真正建成21世纪的世界屋脊的环保型铁路的实施要点。     

Localized Innovation and Productivity Growth in Asia: An Intertemporal DEA Approach

Recent contributions to growth theory stress the importance of localized innovation for the performance of more backward countries. In earlier papers, analyses by means of DEA techniques confirmed this intuition. In this paper, we extend this type of analysis by relaxing the macroeconomic viewpoint adopted until now. New databases on output, labor and capital input in the agricultural and manufacturing sectors are developed for 40 countries. Using intertemporal DEA, it is found that changes in the global production frontier are localized at high levels of capital intensity. This result is stronger in agriculture than in manufacturing. Further, a decomposition of labor productivity growth in eight Asian countries for the period 1975–1992 into the effects of capital intensification, learning and innovation is made. The results suggest that there is a particular development path in which increases in capital intensity appear to be a prerequisite to benefit from international technology spillovers.JEL Classification: O14, O30, O40, O47     

析环境审计对ISO14000的借鉴

ISO14000环境系列标准和环境审计的关系如何，尤其是环境审计中如何借鉴ISO14000的问题，尽管受到广泛关注但始终未得到认真的研究和解决。本文以近年来对该问题研究的结果为背景，对环境审核与环境绩效审计之间的关系进行辨析，在此基础上提出环境审计应该从评价标准和最佳实务支持两方面对ISO14000进行借鉴。     

Applying efficiency measurement techniques to the measurement of productivity change

Deterministic frontier analysis (DFA), stochastic frontier analysis (SFA), and data envelopment analysis (DEA) are alternative analytical techniques designed to measure the efficiency of producers. All three techniques were originally developed within a cross-sectional context, in which the objective is to compare the efficiencies of producers. More recently all three techniques have been extended for use in a panel data context. In the latter context it is possible to measure productivity change, and to decompose measured productivity change into its sources, one of which is efficiency change. However when efficiency measurement techniques, particularly SFA, have been applied to panel data, it has infrequently been made clear what the objective of the analysis is: the measurement of efficiency, which may vary through time as well as across producers, or the measurement and decomposition of productivity change. In this paper I explore the use of each technique in a panel data context. I find DFA and DEA to have achieved a more satisfactory reorientation toward productivity measurement than SFA has.     

Linear Programming Models for the Measurement of Environmental Performance of Firms—Concepts and Empirical Results

I use linear programming models to define standardised, aggregate environmental performance indicators for firms. The best practice frontier obtained corresponds to decision making units showing the best environmental behaviour. Results are obtained with data from U.S. fossil fuel-fired electric utilities, starting from four alternative models, among which are three linear programming models that differ in the way they account for undesirable outputs (pollutants) and resources used as inputs. The results indicate important discrepancies in the rankings obtained by the four models. Rather than contradictory, these results are interpreted as giving different, complementary kinds of information, that should all be taken into account by public decision-makers.     

In at the deep end: Conducting processual research on organisational change

This article provides a series of reflections on the practice of carrying out processual research on organisational change. At a broad level, some of the main tasks associated with conducting company case studies are described and the benefits of this approach for dealing with complex change data are outlined. At a more specific level, the article addresses three main areas tied to the actual “doing” of processual research. First, the notion of tacit knowledge and “getting your hands dirty” by engaging in ongoing in-depth fieldwork. Second, the design and implementation of a longitudinal case study research programme. Third, the advantages and concerns of combining a range of different data collecting techniques in carrying out processual studies. Overall, the main intention is to provide some useful reflections and practical insights, as well as providing something of the flavour of carrying out this type of research.     

声誉机制对环境规制效率的影响研究——基于环境保护财政资金的绩效评价视角

在基于环境保护财政资金的绩效评价视角上，采用博弈论的分析框架，先后使用无限期重复博弈模型和KMRW声誉模型来解释环境保护财政资金使用者声誉机制对环境规制效率的影响。     

信息披露监管模式变更影响企业投资效率吗？——基于双重差分模型的实证检验

基于制度变迁理论考察信息披露监管模式由“辖区监管”变更为“分行业监管”对投资效率的影响。研究发现：分行业信息披露监管模式的实施有效抑制了上市公司非效率投资行为,且对于低质量信息披露以及高盈余管理行为的上市公司抑制效应更加明显;提高会计信息可比性,降低代理成本是其发挥抑制作用的重要路径。在排除了替代性解释和内生性问题以及通过安慰剂检验后,研究结论仍然成立。     

地方政府双重目标管理与环境污染 ——基于中国城市数据的经验研究

基于2003—2018年中国283个地级市的面板数据,探讨地方政府双重目标管理对环境污染的影响机制.研究发现:经济增长目标压力会加剧环境污染,但是经济增长目标压力对环境污染的加剧作用会随着环境约束目标的引入而减弱,即双重目标管理会抑制环境污染.影响机制分析显示,经济增长目标压力会通过阻碍产业结构升级、抑制技术创新和加剧工业用地价格扭曲而加剧环境污染,环境约束目标的引入会通过推动产业结构升级、促进技术创新和抑制工业用地价格扭曲而削弱经济增长目标压力对环境污染的加剧作用.区域异质性分析显示,在中西部以及欠发达城市,经济增长目标压力对环境污染的加剧作用更大,在东部以及发达城市,这种加剧作用较小.在东部以及发达城市,环境约束目标的引入可以削弱经济增长目标压力对环境污染的加剧作用,在中西部以及欠发达城市,这种调节效应不显著.