I doubt you could isolate it to ONE figure and why bother. It will be a combination of economic figures no one had ever imagined possible. Skipped the recession at several turns and then hit the wall. At least that's how I've been looking at it for awhile now.
I like your way of giving concrete numbers, but this seems to be metrics that shows we already in a recession/depression and not predicting signals. And we don't have a way of showing the hit is not going to recover soon or fundamentally change the outlook of the economy.I don't listen to those professional writers about TRUE signal for depression.
I use my own down-to-earth, simple, TRUE indicators:
cost of living getting lower. Goods and services price drops > 25%
property price drops by > 2 times
Unemployment increases > 2 times
If that really happens. What key index or numbers we shall look at in the next few months to witness this historical moment to be.
Because OP is probably a hedge fund loser who's trying to keep his job tbqh. Why else would someone 1 post a question like this.
I would say a global health pandemic would be a big flag. Are you aware of market dynamics at the moment?