Game-theory here would be nice....

One might argue that these tariffs don't matter much. They apply, after all, only to imports worth a couple of billion dollars last year, hardly the stuff of a great trade war. China is incandescent; but China is a master of theatrical overreaction. Its actual response so far has been the minor one of announcing an anti-dumping investigation into American chicken and car-parts exports.
-- Economist, Sep 17th 2009, "Economic vandalism"