 Large book publishers like Doubleday and Simon & Schuster entered the market, greatly increasing demand for fiction.Authors created new manuscripts from old stories to sell to publishers.Algis Budrys in 1965 described fixups as a consequence of the lack of good supply during the "bad years for quality" of the mid-1950s, although citing "The Martian Chronicles" and Clifford D. Simak's "City" as exceptions.