After WWII, Camden's biggest manufacturing companies, RCA Victor and the Campbell Soup Company, decentralized their production operations. This period of capital flight was a means to regain control from Unionized workers and to avoid the rising labor costs unions demanded from the company. Campbell's kept its corporate headquarters in Camden, but the bulk of its cannery production was located elsewhere after a union worker's strike in 1934. Local South Jersey tomatoes were replaced in 1979 by Californian industrially produced tomato paste.