The following reference addresses the topic of volunteering and culture but not as a national culture but as an organizational or corporate culture. It is possible that some ideas can be extrapolated in relation to national culture.
Todd, R. W. (2017). Corporate culture’s influence on employee charitable giving and volunteering. Dissertation Abstracts International Section A: Humanities and Social Sciences. ProQuest Information & Learning. Retrieved from http://search.ebscohost.com.ezproxy.uned.es/login.aspx?direct=true&db=psyh&AN=2017-05709-252&lang=es&site=ehost-live