I think a complete ban on owning individual stocks would be a bit overkill. Perhaps, controversially, I believe members of the government should own some stock

I think a complete ban on owning individual stocks would be a bit overkill. Perhaps, controversially, I believe members of the government should own some stock - I want them personally invested in the economic wellbeing of the country. I also don't want to limit the candidate pool artificially to just professional politicians. But the fix here seems pretty easy. If you are an executive at a publicly traded corporation, you have to disclose any changes in your position of that stock months in advance. Just make politicians follow the same process for the entire stock market.