Why is 上 used in 商業上の目的で?


From the definition of 広告 in
[大辞泉](http://dictionary.goo.ne.jp/jn/72817/meaning/m0u/%E5%BA%83%E5%91%8A/):

> **商業上の目的で**
> 、商品やサービス、事業などの情報を積極的に世間に広く宣伝すること。また、そのための文書や放送など。「―を載せる」「新製品を―する」「募集―」

I wonder why they use 上 in 商業上の目的で. Why not just 商業の目的で?




It would need to be 「[商業上]{しょうぎょうじょう}の[目的]{もくてき}で」 with 「上」 to mean " ** _for
commercial purposes_** ".

「商業の目的」 sounds too "grandiose" to my Japanese ear. That is like saying " **The
Purpose of Commerce** " in a much more philosophical sense.

If one were talking about advertisement or its place in commerce as an
everyday kind of phenomenon, 「商業 **上** の目的」 would sound much more natural and
suitable.




It would need to be 「[商業上]{しょうぎょうじょう}の[目的]{もくてき}で」 with 「上」 to mean " ** _for
commercial purposes_** ".

「商業の目的」 sounds too "grandiose" to my Japanese ear. That is like saying " **The
Purpose of Commerce** " in a much more philosophical sense.

If one were talking about advertisement or its place in commerce as an
everyday kind of phenomenon, 「商業 **上** の目的」 would sound much more natural and
suitable.

