Goods exported would add bancors to a country's account, while goods imported would subtract them. Each nation would be incentivized to keep their bancor balance close to zero by one of two methods: in the case of an excessively positive bancor balance, part of their surplus would be taken and applied to the Clearing Union's Reserve Fund. In the case of an excessively negative bancor balance, their currency’s exchange rate would be lowered, making imports more expensive and exports cheaper.