In regards to BOPI, under a pure flexible exchange rate regime,

		the combined balance on the current and capital accounts will be equal in size, but opposite in sign, to the change in the official reserves.
		a current account surplus or deficit must be matched by an official reserves deficit or surplus.
		a capital account surplus or deficit must be matched by an official reserves deficit or surplus.
		the balance on the current and capital accounts will be equal in size, but opposite in sign.