- 1 0 年前最佳解答
這個是中地理論(Central place theory)，為德國地理學家克里斯徒勒(Walter Christaller)於西元1933年提出
The theory then relied on two concepts456: threshold and range.
* Threshold(商閾) is the minimum market (population or income) needed to bring about the selling of a particular good or service.
* Range(商品圈) is the maximum distance consumers are prepared to travel to acquire goods - at some point the cost or inconvenience will outweigh the need for the good.