需要 じゅよう供給 きょうきゅう法則 ほうそくであれば
juyōkyōkyūno hōsokudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 需要供給の法則

1. If/When supply and demand law applies.; If/When it were the law of supply and demand.

Ba Conditional