Arguing that the trend towards centralization of Canadian publishing in Toronto has led to a monopolistic control of the Giller Prize by Bertelsmann and its authors, Henighan wrote, "Year after year the vast majority of the books shortlisted for the Giller came from the triumvirate of publishers owned by the Bertelsmann Group: Knopf Canada, Doubleday Canada and Random House Canada. Like the three musketeers, this trio is in fact a quartet: Bertelsmann also owns 25 percent of McClelland & Stewart, and now manages M&S’s marketing." Henighan added that all of the Giller Prize winners from 1994 to 2004, with the exception of Mordecai Richler, lived within a two-hour drive of downtown Toronto.