Solve for the rational Bayesian equilibrium

I now read quite a few public health experts on matters of the day, and I have noticed that none of them have condemned the British government for proceeding with the AstraZeneca vaccine trial, even after two adverse health events experienced by participants, noting that those events presumably have been examined and considered by the oversight committee.

At the same time, the American trial for AstraZeneca has remained halted.  I also have not read any public health experts criticizing that decision either.

What is the most likely equilibrium to be holding here?

1. Public health experts don’t express many opinions, especially these days.

2. Plenty of commentators think the British decision to resume is rash, Tyler just isn’t reading enough of them.

3. Most public health experts think it is fine for the British to keep on going.  But they won’t criticize the American trial halt, because their incentives and natural temperamental tendencies are to express mainly the risk-averse opinions, and rarely if ever say that the regulatory process should allow for more risk to be taken.

4. The mainly American experts actually are happy to see America free-riding upon British data, so they are content with things as they stand, but don’t want to quite come out and admit they enjoy exploiting the Brits.

5. In reality the commentators think the whole trial is so risky it never should have been started in the first place.

6. What they really enjoy writing is philosophical pieces about how social process have all these twists and turns, and natural bumps in the road, and so they don’t wish to work too hard to remove those bumps.

7. The public health experts think that Americans and British have optimally different tolerances for risk, and the split regulatory outcomes reflect that difference.

Your choice?



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