Global Coverage between 4 and 2 scenario:
Alice can mint more Bpro tokens, but won’t be able to redeem them.
Bob can redeem his DoC tokens for rBTC, but won’t be able to mint them back.
This will increase the Global Coverage.
Below the level of 2, automatic incentives are triggered, so that Alice and Bob can mint BPro at discount prices. The lower the coverage, the greater the discount.
The full amount of DoC is 10 000, and the full amount of BTC locked in the protocol is 4.
With the BTC/USD rate 10 000, the dollar price of all the locked bitcoins is 4 times higher than the total quantity of DoC, thus the global coverage is 4.
If Alice redeems 2.5 BPro immediately, and gets back her 2.5 BTC, so that the global coverage falls to 1.5, she can get a 50% discount for minting new BPro tokens. Then she mints 5 BPro for her 2.5 BTC.
The global coverage returns to 4, but the BPro value dramatically falls. Initially, 3 BPro were equal to 3 BTC, and at the end 5.5 BPro are equal to 3 BTC.
This scheme makes no sense if there are only two participants (Alice and Bob). But incase there are many BPro holders, each of those who holds a big amount can bring down the BPro value and cause damage to all other holders at any moment.
Do I understand the mechanism correctly?