12  As for the importance of harnessing knowledge, some state that the key for an industrial cluster is to be a core base that can produce spillover effects of knowledge. See Shimizu, H., Antorepurenāshippu [Entrepreneurship: From Basics to Frontiers] (Tokyo: Yuhikaku Publishing, 2022), p. 283.
With regard to the effects of an industrial cluster bringing regional development, see also Kato, M., Sutātoappu no keizaigaku: Atarashī kigyō no tanjō to seichō purosesu o manabu [Economics of Start-Up: Understanding the Birth and Growth of New Firms] (Tokyo: Yuhikaku Publishing, 2022), pp. 69-78.