A short-term contract may be as long as the market can be reasonably predicted within the pledge ratio?
Unless share price is very violent, shareholders don’t need to frequently adjust the pledge ratio. When share price goes up, we don’t worry about the LP’s responsibility abandon at all because pledged shares are more valuable. We only need to be alert for the quickly plumbing of shares into 1/3 price. But that would unlikely to happen without enough reasons, at least, our shareholder won’t suicide in this way if our business is smooth.
LPs can abandon their responsibility. What happens then? BCE would begin printing and selling BKS to buy BKC just like Nu? If LPs don’t reacquire BKC for their loans, they can buy new BKS to pledge for BKC to pay back the previous loan.
When an LP gives up pledged BKS due to BKS price collapse, his BKS is claimed by B&C protocol and for auction sell. This may not completely compensate the system loss because pledged BKS value is lower than borrowed BKC value which is the reason LP abandon responsibility. Extra BKS is issued just like Nu does today. Fortunately loan contract is short term, so when LPs want to sign new loan contracts they will find that the quantity BKC to be borrowed is smaller than previous contract due to BKS price drop.
So shareholders should vote for a safe pledge ratio with enough margin, so that even BKS price halves within short-term, LPs still find their pledged BKS is more expensive than their borrowed BKC. They will execute the contract.
A shareholder can select automatic data source, after his online wallet receiving BKS price info from some big exchanges, e.g $4 per BKS, combined with preset 3$:1$ pledge ratio(set by individual shareholder), his wallet will compute the final pledge number ratio 1.33:1.
That is he votes for “pledge 1 BKS to borrow 1.33 BKC”, this is mediant vote and his wallet shows real time voting result just like B&C now voting “reward” and “number of signers”.
Hayek’s model is very effective in shrinking coins supply, if shareholders want to make coins circulation into ZERO, they just vote ZERO ratio, then after a short-term all coins will flow back into protocol without issuing extra shares. If some BKC customers refuses to sell their BKC to LPs, LPs will have to pay 200-300% to buy back BKC to avoid their BKS loss, e.g. BKC pegging failed due to very high price promotion. I don’t think we need to vote for Zero pledge ratio, such a violent decision.