An “Effect-Based” Approach to Anti-Dumping: Why Should We Introduce a “Mandatory Lesser Duty Rule”? - Journal of World Trade View An “Effect-Based” Approach to Anti-Dumping: Why Should We Introduce a “Mandatory Lesser Duty Rule”? by - Journal of World Trade An “Effect-Based” Approach to Anti-Dumping: Why Should We Introduce a “Mandatory Lesser Duty Rule”? 38 3 Journal of World Trade