Thursday, May 31, 2018

Economics--what is opportunity cost?

It is what you give up to do or make something.

Prolific Agatha Christie, in her own words--listen to sound recording too.

https://www.bbc.com/culture/article/20260109-a-rare-interview-with-the-elusive-agatha-christie?utm_source=firefox-newtab-en-us