that King's wartime policies, "may not have been exciting or satisfying, but they were effective and successful. That is why, practically alone among wartime governments, his continue to enjoy public support after as well as during the Second World War." Historian Jack Granatstein evaluates the King government's economic performance. He reports, "Canada's economic management was generally judged the most successful of all the countries engaged in the war." Historian Christopher Moore says, "King had made 'Parliament will decide' his maxim, and he trotted it out whenever he wished to avoid a decision." King was keenly sensitive to the nuances of public policy; he was a workaholic with a shrewd and penetrating intelligence and a profound understanding of the complexities of Canadian society. His strength was apparent when he synthesized, built support for, and passed measures that had reached a level of broad national support. Advances in the welfare state were an example. His successors, especially Diefenbaker, Pearson, and Trudeau built the welfare state which he had advanced during the Second World War into the modern cradle-to-grave system. Historian H. Blair Neatby wrote, "Mackenzie King has continued to intrigue Canadians. Critics argue that his political longevity was achieved by evasions and indecision, and that he failed to provide creative leadership. His defenders argue that he gradually changed Canada, a difficult country to govern, while keeping the nation united." King was ranked as the greatest Canadian Prime Minister by a survey of Canadian historians. King was named a Person of National Historic Significance in 1968. Memorials King's likeness is used on the Canadian fifty-dollar note since 1975. King left no published political memoirs, although his private diaries were extensively detailed. His main published work remains his 1918 book Industry and Humanity. Following the publication of King's diaries in the 1970s, several fictional works about him were published by Canadian writers. These included Elizabeth Gourlay's novel Isabel, Allan Stratton's play Rexy and Heather Robertson's trilogy Willie: A Romance (1983), Lily: A Rhapsody in Red (1986), and Igor: A Novel of Intrigue (1989). In 1998, there was controversy over King's exclusion from a memorial to the Quebec Conference, which was attended by King, Roosevelt, and Churchill. The monument was commissioned by the sovereigntist Parti Québécois government of Quebec, which justified the decision on their interpretation that King was acting merely as a host for the meeting between Roosevelt and Churchill. Canadian federalists, however, accused