The central theme of this issue of Economics and Business Review is the contribution made by Prof. Michael Porter of Harvard University to the development of economic sciences and the honorary doctorate awarded to him by the Poznań University of Economics and Business.1 Advancements in world research on strategy and competitiveness have been indelibly marked by the work of Prof. Michael Porter. It is based on several conceptual pillars which, over time, have become part of the canonical economic, managerial, business and administrative knowledge. The first of these pillars is competitive strategy theory, which consists of such concepts as the Five Forces model and the main types of competitive strategy (Porter, 1979, 1980). It seems that the creation of this theory was helped by Porter and Caves’s joint work on entry, exit and mobility barriers (Caves & Porter, 1977). Another of Porter’s significant accomplishments is competitive advantage theory, which covers, among other categories, the value-added chain and value system (1985). The third pillar of Porter’s work is his analysis of the foundations of the competitive advantage of nations, formulated as Porter’s diamond model (1990). In Porter’s comprehensive competitiveness theory an extremely important part is played by the category of clusters, which is another key component of his contribution to economic knowledge (Porter, 1998). The final pillar is the idea of shared value, which, to put it simply, consists of conducting a business activity that simultaneously solves major social problems (Porter & Kramer, 2011). Subjective as this list may seem it is worth noting that Porter’s contribution to world-wide research has been accumulated over several decades with its pillars forming a coherent system of interrelated categories and theorems. Subject to evolution the system is being systematically expanded. In fact it is Porter himself (2008) that proposed a comprehensive and updated approach to his work. Analysing the subsequent stages of Porter’s work we can see that he started with economics and moved on to management, finally to bridge the gaps between them using building materials such as elements of economics, organisation and management, technology and ethics. Prof. Porter’s work is unique in that it consists of studies focusing on the company as a whole, on its particular components (e.g., its activities), on medium-range systems (industries, sectors, clusters, and networks) and on national economies or even groups of countries. As far as microeconomic issues

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本期《经济与商业评论》的中心主题是哈佛大学的迈克尔·波特教授对经济科学发展的贡献以及波兹南经济与商业大学授予他的荣誉博士学位。1世界研究的进展迈克尔·波特（Michael Porter）教授的工作具有不可磨灭的战略和竞争力。它基于几个概念性支柱，这些支柱随着时间的推移已成为规范的经济，管理，商业和行政知识的一部分。这些支柱的第一个是竞争战略理论，它由诸如五力模型和竞争战略的主要类型等概念组成（Porter，1979，1980）。波特和凯夫斯（Ports and Caves）在进入时的联合工作似乎有助于这一理论的产生，出口和流动障碍（Caves＆Porter，1977年）。波特的另一项重要成就是竞争优势理论，该理论除其他类别外还涵盖了增值链和价值体系（1985年）。波特的工作的第三大支柱是他对国家竞争优势基础的分析，该模型被描述为波特的钻石模型（1990年）。在波特的综合竞争力理论中，集群的类别扮演着极其重要的角色，这是他对经济知识的贡献的另一个关键组成部分（Porter，1998）。最后一个支柱是共享价值的概念，简单来说，它包括开展一项能够同时解决重大社会问题的商业活动（Porter＆Kramer，2011）。似乎值得一提的是，这个主观似乎值得一提，波特对全球研究的贡献已经积累了数十年，其支柱形成了相互联系的类别和定理的系统。随着发展，该系统正在系统地扩展。实际上，是波特本人（2008年）提出了一种全面而更新的工作方法。通过分析波特工作的后续阶段，我们可以发现他从经济学入手，然后转向管理，最后使用诸如经济学，组织与管理，技术和道德要素之类的建筑材料弥合了两者之间的鸿沟。波特教授的工作之所以与众不同，是因为研究包括针对公司整体，其特定组成部分（例如其活动），中型系统（行业，行业，集群和网络）以及国家经济乃至国家集团。至于微观经济问题