504 Note: This research was supported by a grant from the Social Sciences and Humanities Research Council (SSHRC) INE Public Outreach Grant (Canada). The authors are grateful to all ARNOVA members who participated in this study. Nonprofit and Voluntary Sector Quarterly, vol. 36, no. 3, September 2007 504-520 DOI: 10.1177/0899764007300388 © 2007 Association for Research on Nonprofit Organizations and Voluntary Action RESEARCH NOTE The Value of Volunteering for a Nonprofit Membership Association: The Case of ARNOVA Laurie Mook University of Toronto Femida Handy University of Pennsylvania Jorge Ginieniewicz Jack Quarter University of Toronto Although research indicates that volunteer labor is of significant value to many non- profit organizations, this value is generally not included in the organization’s financial accounting statements. This study discusses the value added to nonprofit membership organizations of the volunteering done by its members. It uses an exploratory case study of the Association for Research on Nonprofits Organizations and Voluntary Action (ARNOVA) to demonstrate how volunteer labor is valued and presented within a social accounting framework by utilizing the Expanded Value Added Statement. This is followed by discussion of some of the benefits and limitations of such a method and policy implications. Keywords: volunteer labor; value added; social accounting; nonprofit membership organization This article focuses on the value of volunteers to professional membership organizations. Although volunteering in the United States is ubiquitous, with the 2006 U.S. Current Population Survey reporting that just more than 23% of men and 30% of women are engaged in voluntary activities (Bureau of Labor Statistics, 2007), this activity is quite diverse, spanning across different sectors and subsectors of the economy and various types of organizations.