Can you think of any industry that was competitive and became a monopoly through weather, technology, etc? or can you think of an industry that was a monopoly and became competitive through weather, technology, etc? Did you know that you can have a monopoly on the buyer's side?  It's called a monopsony

Can you think of any industry that was competitive and became a monopoly through weather, technology, etc?

or

can you think of an industry that was a monopoly and became competitive through weather, technology, etc?

Did you know that you can have a monopoly on the buyer's side?  It's called a monopsony.  Try to use that in a convo today :).  Walmart is kind of an example of this.  They buy so much product from their suppliers that when they say jump, those suppliers jump.  They fine folks by the minute for being late to deliver.   Discuss 

https://econ.video/2017/09/30/forrest-gump-only-boat-left/?utm_source=EX&utm_medium=Video&utm_campaign=MRUEamil&utm_content=forrest-gump-only-boat-left&__s=79b855eshyhr2pvpb66g