Paul Krugman is must-read today on China qua rogue economic superpower:

China’s response to the trawler incident is, I’m sorry to say, further evidence that the world’s newest economic superpower isn’t prepared to assume the responsibilities that go with that status.

Major economic powers, realizing that they have an important stake in the international system, are normally very hesitant about resorting to economic warfare, even in the face of severe provocation — witness the way U.S. policy makers have agonized and temporized over what to do about China’s grossly protectionist exchange-rate policy. China, however, showed no hesitation at all about using its trade muscle to get its way in a political dispute, in clear — if denied — violation of international trade law.

Couple the rare earth story with China’s behavior on other fronts — the state subsidies that help firms gain key contracts, the pressure on foreign companies to move production to China and, above all, that exchange-rate policy — and what you have is a portrait of a rogue economic superpower, unwilling to play by the rules. And the question is what the rest of us are going to do about it.