So when the price changes enough no one can buy anything for 15 to 30 days? Sounds like a way to make a currency useless.
If price changes are sufficient to retain 100% of all transactions, is that the price of the coin was 0 .. then what do you buy with it?
but if the price drops a bit, only retains, for example, 3% of each transaction. Once operational the price would remain in a very narrow channel, since large drops retain much money and big ups saturate the market, driving down prices.
This is just a small outline, to meditate on it ...