In the data, a sizable fraction of price changes are temporary price reductions referred to as sales. Existing models include no role for sales. Hence, when confronted with data in which a large fraction of price changes are sales related, the models must either exclude sales from the data or...

Though the renminbi is not yet convertible, the international monetary regime has already started to move towards a 'multipolar' system, with the dollar, the Chinese currency and the euro as its key likely pillars. This shift corresponds to the long-term evolution of the balance of economic...