The microchip market

 Rising demand and inelastic supply. Thanks to the BBc

https://www.bbc.co.uk/news/av/business-56943292

What explains the volatility of oil and food prices?

Thanks to economicshelp
https://www.economicshelp.org/blog/2601/economics/what-explains-volatility-of-oil-and-food-prices/

Volatile agricultural products

Thanks to economicshelp for this
http://www.economicshelp.org/blog/23840/economics/what-causes-price-fluctuations-in-agricultural-markets/