noun
commercial geography
Academic field studying the spatial distribution of commerce, trade, and economic activities.
大学で商業地理学を専攻しています。
I am majoring in commercial geography at university.
経済地理学 (economic geography) is a broader field that includes commercial geography but also covers industrial location, regional development, and resource distribution.
Compound of 商業 (commerce) + 地理学 (geography). The term is a direct translation of the English 'commercial geography'.