In order to comprehend the ontological construction below, please refer to the respective posts for all notions in italic. A commodity attracting the lowest amount of income is known as inferior good.

Giffen mali; fiyat degisimiyle tuketim ayni yonde degisen mallardir. Talep kanununa aykiri bir maldir. Fiyat artikca talebi artan, fiyat dustukce talebi dusen mallardir. (Dogru yonlu)