Facts:   - residence: new york city      - birth date: january 5 , 1961    - name: ethan cohen    - occupation: gallerist    - birth place: california    - alma mater: harvard university   Based on these bullet points, write a short biography describing the life of ethan cohen -lrb- gallerist -rrb- .
ethan cohen is an american collector and an art dealer based in new york city who specialises in contemporary chinese and contemporary african art .he was one of the first western dealers to sell work by contemporary japanese and chinese artists including ushio shinohara and ai weiwei .he has been called `` one of the most influential art dealers in the world '' .forbes praised his gallery as an `` exemplar in the field '' , putting on `` resplendent , probing shows '' .