> Lots of economists are clearly wrong, as mutually excluding statements cannot be simultaneously true. To find out which side is which, you can employ simple logic

The world isn't black and white, and nearly zero things as complex as pros and cons of allowing insider trading can be reduced to naive boolean logic.

It is a fact for a long time a lot of economists, perhaps even a majority, are for insider trading because it provides signal to markets and pricing quicker than only allowing investors to discover problems on a quarterly clock-tick, which results in a lot more damage from asset floodgates instead of smoother transitions.

Ever read any published paper on the topic? Use Google scholar, you'll find useful knowledge there.

The whole premise of price discovery is that participants in the market profit from information imbalances. The profit motive is the incentive for people to expend effort to generate and then, through price signals, disseminate information.