Andrew Zimbalist, the Robert A. Woods professor of economics at Smith College, toys with such far-out concepts as the abolition of all antitrust restrictions on baseball. Taken literally, without antitrust restrictions, ball clubs would presumably be free to locate wherever they wished. ‘’If monopoly sports leagues did not artificially regulate the number and location of franchises,’’ he writes, ‘’then markets would be filled according to demand. A media market with seven million households, such as New York, would host a third or a fourth team before a market with 830,000 households, such as Milwaukee, would host its first franchise,’’ says Lawrence S. Ritter in the New York Times Book Review.