“…Numerous studies have proposed that since firm clustering and its resultant knowledge spillover basically reflect positive public good nature (Appold 1995), governments should encourage the concentration of firms in geographic proximity through diverse public policy measures (e.g., subsidies, industrial zones, government-managed technical centers, and community incentive packages) in order to foster formal and informal contacts, business and non-business collaboration opportunities, and synergy effects among cluster participants (Appold 1995; Jensen and Pompelli 2002; Kim 2005; Van Dijk and Sverrisson 2003; Yamawaki 2002). However, based on a comprehensive literature review, the empirical results on the role of government policies affecting cluster formation are mixed, with no consensus (Holmes 1998).…”