Macroeconomic Gem Video #29 is about medium of exchange.

Once humans agreed on a medium of exchange, voilà — no more guessing if three chickens equaled a sofa. Suddenly, we could do cost accounting! Inputs, outputs, profit, loss — capitalism’s favorite spreadsheet was born. Who knew economic enlightenment came right after deciding we’d rather use coins than cows?
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Here is a beautifully done two-minute-video introducing this book: • "More Than Laissez Faire" is an alter...
Chapters:
0:00 Getting Ready To Start
0:01 Introduction
0:28 Screen Share
1:10 Story
3:20 Screen Share
3:50 Does the use of a medium of exchange lead to efficiency?
5:46 Life Lesson
8:03 Subscribe to this YouTube Channel