Brazil Nut Price Rises - A Case Study of Demand And Supply

Food prices often rise or fall with good or bad harvests or because of a change in demand. A recent example is the price of Brazil nuts, which by May this year had risen over 60% on European markets.

Part of the reason for the price rise has been on the demand side. Consumption of Brazil nuts has increased as more people switch to healthier diets. This includes the purchase of the nuts themselves and as part of healthier snack foods. With supply being relatively inelastic, any rise in demand tends to have a relatively large effect on price.

A more acute reason is on the supply side. There has been a very poor harvest of Brazil nuts. The nuts are grown largely in the Amazon basin which has been hit by drought linked to the El Nio effect. This, however, is only a temporary effect and future harvests should increase again as rainfall returns to normal. However, in the longer term, rainfall patterns may change with the effects of global warming.

The price rise in the UK has also be aggravated by the depreciation of the pound since the Brexit vote, which has fallen some 13% against the dollar since June 2016. A rise in the dollar price of Brazil nuts has thus led to an even bigger rise in their sterling price.

(Source : pearsonblog.campaignserver.co.uk)

Question: Explain the diagram broadly, why did the price of Brazil nuts in 2017 rise ahead of the change in supply?