Yes, I suppose my comment wasn’t clear. There are twice as many distinct prices as there should be, not 4x. There should only be one price per candidate (plus an additional price for “other” in many cases). The “buy no” price for a single candidate should be equal to the sum of the “buy yes” prices for all the other candidates, and that relationship should be fully enforced by the exchange.
Yes, I suppose my comment wasn’t clear. There are twice as many distinct prices as there should be, not 4x. There should only be one price per candidate (plus an additional price for “other” in many cases). The “buy no” price for a single candidate should be equal to the sum of the “buy yes” prices for all the other candidates, and that relationship should be fully enforced by the exchange.