Of difference of Japanese economy area contractible and main happen in 60, 70 time, expand somewhat instead in 80 time, 90 time is main as a result of bubble economy undone narrow somewhat again.

• 日本经济区域差异的缩小主要发生在60、70年代，在80年代反而有所扩大，90年代主要由于泡沫经济的破灭又有所缩小。