Die Beurteilung der außenwirtschaftlichen Entwicklung der Wirtschaft eines Landes kann auf verschiedene Indikatoren gestützt werden. ###>According to the second factor, when the costs and prices (expressed in a common currency) of the domestic pro duction of one country increase faster than those of its competitors, then exports become dearer abroad and imports cheaper in the domestic markets implying, ceteris paribus, a deterioration of the external balance.