As part of its witch hunt for unfair market practices, the EU Parliament’s AGRI Committee requested a study of the major agricultural commodity trading companies and their impacts.  The study may inform populists in the U.S. that also see consolidated industries as inherently harmful, but the bottom line for policymakers is what can they logically do about such concerns. Lawmakers, especially in Europe, should heed this week’s warning by Portuguese Foreign Minister Paulo Rangel who said, "Europe has a cultural tendency to over-regulate, which is naturally a disadvantage. We need balance, it's always a question of balance, and we need to accommodate both [technology development and democratic values and human rights]."Oligopoly: The rep...