North Koreans this April wait on the platform of a railway station in North Pyongan province, on the main line between the capital Pyongyang and the Chinese border city of Dandong.

In this paper, the people of 60 years or older is for the survey.

North Korean pupils and their teachers wave to Chinese residents as they take a tour on theYalu River near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong.

This paper, based on a case study of Dandong city, illustrates how to calculate the balanced benchmark land price from components and spatial balance.

Effect of export, foreign real direct investment on Dandong City's GDP from 1994 to 2004 was analyzed with linear regression theory.