Border Effects in Passenger Air Traffic
利用德国机场的国内与国际客运航班数据，发现国界使客运航空流量减少四到五倍，为边界效应提供了新证据。
SUMMARY The empirical literature on border effects suggests that national borders substantially reduce the level of economic transactions. This paper adds another piece of evidence to the significance of border effects by applying a new data set which is completely independent of the data sets of previous studies. Our data refer to domestic and international passenger departures from German airports. The econometric results indicate that the German border reduces passenger air traffic by a factor of four to five. This magnitude is in line with the results of previous studies for trade and investment flows.