> Both supply and demand change depending on the price.
But that's a massive oversimplification. It's like saying programming is "just typing". Technically, sure; accurate, no. There's latency in the real world. Bad actors. Information asymmetries. Regulations. Monopolies. Stuff you can't do without and can't even always decline (ambulance ride for an unconscious person). Fake news about a supply crunch changes demand without changing supply for a while.
Most relevant in modern global economies: lack of available alternatives.
One of the primary reasons for combination in low-margin markets is to gain pricing power. And even if there are 2-5 entities in a given market, informal price collusion is far from unheard of.
But that's a massive oversimplification. It's like saying programming is "just typing". Technically, sure; accurate, no. There's latency in the real world. Bad actors. Information asymmetries. Regulations. Monopolies. Stuff you can't do without and can't even always decline (ambulance ride for an unconscious person). Fake news about a supply crunch changes demand without changing supply for a while.