I don’t know what Arnold Kling is doing these days. How would data look differen

I don’t know what Arnold Kling is doing these days.

How would data look differently to economists if all accounting software, everywhere, reported sales data from A to B, whenever it was posted, to an independent database using a (large) generic chart of accounts, so that we could measure PSST at that level, rather than the macro level?

Policy is enacted upon what can be measured.

I suspect that we would just see even more intervention. On the other hand, the impact of all the intervention would be more visible. And that our counter -arguments would be much better.

household data is nonsense. Macro data is all but useless. PSST is actionable.