I agree with you that it's possibly unanswerable, which is more or less the point. The broader idea is that there are lots of obscure interactions like that one I made up.
You can switch up the doctor and CEO patient for anything else. Bankers, lenders, family friends, former professors ... An unbounded number of humans that can come into contact with useful info to trade on. What do we think are the magical constraints that prevent them from doing so? Corporate etiquette?
The ROI will obviously be a function of what information is passed. But I think that I'm more interested in understanding how often it happens rather than that any one case is "low ROI". It is interesting to consider whether it's the ROI threshold that should philosophically make/not make something insider trading.
You can switch up the doctor and CEO patient for anything else. Bankers, lenders, family friends, former professors ... An unbounded number of humans that can come into contact with useful info to trade on. What do we think are the magical constraints that prevent them from doing so? Corporate etiquette?
The ROI will obviously be a function of what information is passed. But I think that I'm more interested in understanding how often it happens rather than that any one case is "low ROI". It is interesting to consider whether it's the ROI threshold that should philosophically make/not make something insider trading.