id	keyword
fbem-16447	innovation efficiency
fbem-16447	green
fbem-16447	carbon
fbem-16447	carbon trading
fbem-16447	effect
fbem-16447	model
fbem-16447	policy
fbem-16447	provinces
fbem-16447	market
fbem-16447	enterprises
fbem-16447	trading policy
fbem-16447	test
fbem-16447	cities
fbem-16447	level
fbem-16447	paper
fbem-16447	trading market