Patent ID: 8407126

Claim:
A computer-implemented method of calculating a value representing a prospective currency unit of a monetary union, the calculating comprising: receiving an aggregated economic indicator value representing an economic indicator for a monetary union at a first time frame while a breakout entity is still a member of a monetary union; determining a proportion of the aggregated economic indicator value attributable to an economic indicator value of at least one breakout entity that is currently a member of the economic union; and calculating with one or more processors of an exchange computer system an initial value representing an exchange rate of the prospective currency unit of the monetary union against a second currency of a country that is not part of the monetary union, comprising: for each of the at least one breakout entity, weighting an exchange rate of the at least one breakout entity against the second currency according to its proportion of the economic indicator value for the first time frame; weighting an exchange rate of a currency of the monetary union against the second currency according to the proportion of the economic indicator value not attributable to the at least one breakout entity for the first time frame; and combining the weighted exchange rates to obtain the initial value of the prospective currency unit.