Partial list of areas where there might be a market failure and I might support government intervention:
- Masks and social/physical distancing rules in a pandemic - I much prefer persuasion in the marketplace of ideas backed by good and plentiful information. That said, in a very serious health crisis a government-enforced policy might keep the peace and prevent very costly experimentation from defectors like a business not complying. Bringing this to the news of the moment--I generally do not think SARS-CoV-2/COVID-19 qualifies. A failure on the part of government (and others) to even properly try the persuasion avenue does not then necessitate the force avenue. Further, compliance with practices consistent with most all of the nonpharmaceutical interventions has been remarkably high and widespread as well as ahead of the mandated institution of the NPIs. This is a point the advocates of force ignore until they wish to defend against the accusation that the economic and other costs have come as a result of forced NPIs. Then they are quick to point out that "it is the virus, not the lockdown". Careful thinkers realize it is both and the latter makes matters on net much worse.
- Zoning - but not in the way most people think. This one really is more of a government failure that perhaps needs collective agreement. Zoning way too typically becomes NIMBYism protecting vested current interests at the expense of potential and less powerful interests. Basically we may need higher-order (federal) laws preventing localities from encroaching in private property rights.
- Certain, limited cases of patents - Here is my prior thinking on this subject.
There are at least two problems with most cases of the discovery of market failure:
- That you're overlooking some critical factor that negates the market failure condition. There is something else going on here; there are needs being satisfied along an unexplored dimension.
- The market failure does exist but will be short-lived and thus insignificant. Short-lived might be in the eye of the beholder, true enough, but this is definitely an area where a longer than average point of view is needed (near-far mode if you will).
- Garbage collection
- Subsidies for under-produced goods (e.g., vaccines, General healthcare, education)
- General city planning such as road layout and utilities, etc.
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