A tighter wastewater rule in China didn't just cost firms money, it reshaped what they could sell: export quality rose 4.8% after one crackdown, then fell 9.3% after a stricter one. The lesson for Canada's carbon price fight: stringency alone doesn't decide the outcome, a firm's room to adapt does.

— via The Conversation — Canada, Longzhou Wang, Assistant Lecturer, Alberta School of Business, University of Alberta