Ma, why do we have futures markets?
We have them because there are all sorts of goods that people know that they will need to buy or sell in the future, say six months from now, and they want to be sure they can buy them at a certain price. Economists call this “hedging” against the risk that the price can change in a way that you may not be prepared for.
Which kinds of goods are these?
There can be futures markets in almost anything. They first started with agricultural commodities like rice and wheat, because no one could know exactly what the harvest would be like and so it helped some people to choose a price to buy or sell at in advance. Now futures markets cover not just agricultural commodities but also minerals and oil and metals, and also lots of other goods. And even some services!
So these futures markets stabilize prices?