Mustard, soyabean oils slide on low demand –

A useful article to use and where to find the relevant section within the AL Economics Spec for Edexcel, AQA and OCR:

Edexcel spec reference 1.2.6 – Price determination

AQA spec reference – The determination of equilibrium market prices

 OCR spec reference P8 – Explain, with the aid of a diagram, how demand and supply interact to produce market equilibrium