i don't think that is something we can ever measure with a "study"!
it is a speculation that could only be made AFTER the halving and the price rises were done. and that means at least 6 months
wrong. right now we can study that if the halving happened right now the halving is not priced in.
ofcourse hashrate can decline and mining cost can decine whereby if the price was $7.8k in 6 months and the mining cost was $3.9k then that would mean when a halving happened at that time the miners are still breaking even and thus at that point the halving is 'priced in
ofcourse hashrate can remain stagnant and mining cost can stagnate whereby if the price was $7.8k in 6 months and the mining cost was same as now then that would mean when a halving happened at that time the miners are not breaking even and thus at that point the halving is not 'priced in'
ofcourse hashrate can remain stagnant and mining cost can stagnate whereby if the price was $13k in 6 months and the mining cost was same as now then that would mean when a halving happened at that time the miners are breaking even and thus at that point the halving is 'priced in'
but thats the future situation...
you specifically said its impossible to know if january 2020 has it priced in.. and only able to tell months after the halving looking back many months..
no. todays costs and todays price does not have the excess speculative profit that could manageably cope with a halving right now.
the price has to go up or mining costs have to go down.
its something that can be studied before the event.. not months after.
ofcourse we cannot predict the speculative price of 6 months time
ofcourse we cannot predict the hashrate amount of 6 months time
ofcourse we cannot predict the mining hardware of 6 months time
so we cannot predict if in 6 months time (just before halving) if its priced in
but january2020 situation can tell you that JANUARY 2020 numbers do not have excess buffer in the speculative price to cover a halving happening right now