
Lenny D. answered 01/10/20
Former Tufts Economics Professor and Wall Street Economist
Insider trading deals with Buying and selling the securities (stocks and Bonds) based on information not publicly available.
Tariffs and Anti-Dumping laws focus and appeasing the concerns of producers who find it difficult to compete with Imports.Here the argument is that prices are too low.
This Leaves Anti-trust Laws dating back to the days of Teddy Roosevelt for focus on preventing firm from obtaining undue monopoly power. Here the fear is that prices will be "too high".