We then examine the consequences of volume loss on postal systems in order to provide a measure of burden in terms of increases in average unit costs as volume is lost to competitors, or
There is no way to measure the burden of the volume loss.
mnli hypothesis: There is no way to measure the burden of the volume loss. premise: We then examine the consequences of volume loss on postal systems in order to provide a measure of burden in terms of increases in average unit costs as volume is lost to competitors, or