Would it also not be worth increasing the max force settle volume per 24hrs? If it's set to 1% and someone has a margin call greater than 1%, perhaps the DEX couldn't clear the margin call fast enough?
I agree that max force settle volume is WAY too low. But I sort of assumed it didn't affect margin calls.
FWIW, the DEX doesn't clear margin calls -- the traders do. A possibly-bigger problem is the max short-squeeze ratio is only 110%, which means that margin calls are not very aggressive and traders don't have much incentive to buy into the margin call. I suppose USD will probably black-swan today because of it. A very serious problem is that Bitshares is too shorter-friendly, at the expense of people who hold the supposedly risk-free bitassets.
What would the effect of changing the max short-squeeze ratio be specifically? Would you desire it increase of decreased? All committee controlled assets use 110%
In my view (bear in mind that I haven't worked through all of the details here), it should be increased. As I understand it, 110% means that a margin call is settled at the price feed plus 10%, which means essentially that the shorter is assessed a fixed penalty of 10% for letting their collateral ratio get too low. Alternatively, BitAsset holders are offered a 10% premium to trade in their BitAssets for BTS. In wild market swings (especially when the price feeds are lagging the external prices), 10% may be too low to clear a high volume of margin calls and prevent a black swan.
I have a vague feeling that the reason the MSSR exists in the first place is to provide a measure of protection against manipulation. Unfortunately the effect of this is to transfer risk from BitAsset short positions to BitAsset long positions.