85% of all Bitcoins will have already be mined by the time of the halving. How do you think Bitcoins 2020 halving will affect its price?
The effects of the bitcoin halving will be visible 1 year (at least) after the occurance of halving. The individual miners cannot make an impact on the price. If something will happen in the price will happen due to businesses that are active in mining. These actors have the volume not the individual miners who mine 1 bitcoin every 5 months.
I think that in 2020 nothing is going to happen due to halving. I expect a price increase during 2021.