This paper examines the characteristics and significance of Schumpeter’s concept of the entrepreneur in the context of his relationship with Léon Walras, an economist who most influenced him. The paper also analyzes the history of the entrepreneur concept in France, including the ideas of J.B. Say and Richard Cantillon. Through the analysis, the paper aims to clarify contemporary entrepreneurship theory’s historical and intellectual background. The significance of Kirzner’s theory of entrepreneurship, often compared to Schumpeter’s, will also be discussed from the perspective of his criticism of Walrasian theory.

As a new kind of entrepreneurship phenomenon, social entrepreneurship (SE) is attracting increasing attention. With the development of research, various attempts to conceptualize SE have been made, making it difficult to grasp a complete picture of the phenomenon. Therefore, this paper first traces the trajectory of SE research and organizes the SE conceptualizations to date. Then, the paper presents the core issues related to the sociability criteria and resource mobilization of SE by focusing on the specificity of its concept.

This study investigates whether family firms show a different strategy compared to non-family firms in facing an unanticipated external economic shock. According to the analysis result: 1) the ROA of family firms declines less compared to non-family ones, and 2) family firms respond more actively to uncertainty than non-family ones. This study found that entrepreneurial advantage over uncertainty can be one factor in the high performance of family firms and that family firms tend to be antifragile. These findings contribute to the family business research and entrepreneurship study.

The last 15 years marked a surge of so-called entrepreneurship ecosystem studies. How are those studies similar or different from other locally based systems studies or economic geography, such as agglomeration and clusters? This article examines the strengths and weaknesses of the ecosystem studies, and proposes areas of improvement for future studies.

This paper clarifies the open innovation process by a departing researcher from a former organization to a new one. The paper is to elucidate the following two steps: 1) Why the researcher who left a former organization brings an exploratory opportunity for research and development (R&D) to a new one, and (2) how the new organization exploits the opportunity. In a case study, we examined the relationship between researchers as the key conduit to carrying out collaborative R&D between a former organization and a university to which the departing researcher newly belonged. Through this exploratory opportunity brought by the departing researcher, the former organization could realize ambidexterity by combining external knowledge and internal knowledge through collaboration.