Translations: Monetary system/105/en
CONTROLLABLE - currency property suitable for currencies which need to track an external entity. It imposes the following limitations on the currency (1) Currency can be transferred only to/from the issuer account (2) only the issuer account can publish exchange offers. The issuer account can issue a large (practically infinite) supply of units in advance, then transfer units to accounts, or offer to exchange units, to reflect actual transactions which take place in an external system. The large supply of units in the issuer account can be used to mimic the effect of creating units out of nowhere to support features such as creating new units and interest payments.