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Jack Cohen, 64, the advertising pioneer who coaxed newspapers into the national ad horse race by developing the standard ad unit, is calling it quits.
After 38 years at Madison Avenue's DDB Needham Worldwide Optimum Media, Cohen is moving to Boynton Beach, Fla., for retirement-cumconsulting.
In the mid-1980s, Cohen was serving a second term as chairman of the newspaper committee of the American Association of Advertising Agencies...





