Study | Study design | Sample size | Reference |
Civilizational boundary | The civilizational boundary study based on the PDI and the IDV in the Hofstede model for national culture | 76 cultural units | Hofstede, G. et al. (2010) Cultures and Organizations: Software of the Mind |
Regional defense boundary | The regional defense boundary based on the United Nations members and their locations and cultures | 195 states | The United Nations (2019) Member States |