By 1940, Minnesota was known as one the most cooperative-minded states in the Union. More than 600 cooperative creameries, 150 township mutual fire insurance companies, hundreds of rural telephone associations, and 270 farmers' elevators were proof of the power of economic cooperation, and they made Minnesota into a "cooperative commonwealth."

In Collective Courage, Jessica Gordon Nembhard chronicles African American cooperative business ownership and its place in the movements for Black civil rights and economic equality. Not since W. E. B. Du Bois’s 1907 Economic Co-operation Among Negro Americans has there been a full-length, nationwide study of African American cooperatives. Collective Courage extends that story into the twenty-first century. Many of the players are well known in the history of the African American experience: Du Bois, A. Philip Randolph and the Ladies' Auxiliary to the Brotherhood of Sleeping Car Porters, Nannie Helen Burroughs, Fannie Lou Hamer, Ella Jo Baker, George Schuyler and the Young Negroes’ Co-operative League, the Nation of Islam, and the Black Panther Party. Adding the cooperative movement to Black history results in a retelling of the African American experience, with an increased understanding of African American collective economic agency and grassroots economic organizing. To tell the story, Gordon Nembhard uses a variety of newspapers, period magazines, and journals; co-ops’ articles of incorporation, minutes from annual meetings, newsletters, budgets, and income statements; and scholarly books, memoirs, and biographies. These sources reveal the achievements and challenges of Black co-ops, collective economic action, and social entrepreneurship. Gordon Nembhard finds that African Americans, as well as other people of color and low-income people, have benefitted greatly from cooperative ownership and democratic economic participation throughout the nation’s history.