No longer a simple tit-for-tat: China is ready to endure — and inflict — real pain on the U.S.

No longer a simple tit-for-tat: China is ready to endure — and inflict — real pain on the U.S.: Businesses and markets are bracing for a drawn-out fight between the U.S. and China that ventures into new, economically fraught territory and throws tit-for-tat rhetoric out of the window.