For example, loans. They would be priced against average risk, and low-risk individuals with privacy would pay the same risk premium as high-risk individuals.
This may be fine for individuals who voluntary give up privacy at chosen moments for chosen partners. It would be more complex and expensive to operate that general open brokerages.
All very, very recent systems in the grander scheme.
"In the grander scheme" interstate highways and air travel and scuba diving are new too, what about them?
As you say, on balance some of them are good/should be preserved, and some should be reconsidered.
I think there's a wide regulatory spectrum available between "ban something outright" and "completely lassiez-faire noninterventionist approach". For stock buybacks, that spectrum includes (and I don't have a specific pitch or favorite in this non-exhaustive, non-mutually-exclusive list):
- Requiring federal approval before a buyback event in excess of a certain value or capitalization percentage, similar to the way that mergers can be curtailed by regulators.
- Restricting the volume of buyback activity per year/quarter.
- Imposing different taxation behavior triggered by buybacks or as a percentage of buyback value.
- Giving the government preferential purchase opportunities in the event of a buyback for large companies (I.e. "you can buy back 10% of your capitalization, but the government reserves the right to instead purchase half of that--5% of your capitalization--at the buyback rate"), under the rationalization that, if you're huge and doing well enough for a buyback event, then you're doing well enough that the public interest should have influence over your business's future.
Previous HN discussions of this topic, selected non-rigorously:
https://news.ycombinator.com/item?id=22616197
https://news.ycombinator.com/item?id=21762582