Two asset classes down, two to go. Lets look at what commodities are.
Commodities
There are two types of commodities, hard and soft.
Commodity Prices
Lots of factors impact the price of commodities, these can be split into two camps – demand and supply factors. Factors like the weather and an earthquake might reduce the supply of a commodity, push its price up. Factors like a recession or change of usage over time might reduce demand and push the price down. Nearly all commodity prices are in US dollars, so the value of a commodity for those users buying in another currency also effects price. Here is live chart for Brent, a type of oil, just look how it changes over time.