How can factors like inflation, supply and demand, and interest rates trigger recessions? Learn the economic basics of modern markets.br br --br br For millennia, the people of Britain had been using bronze to make tools and jewelry, and as a currency for trade. But around 800 BCE, that began to change: the value of bronze declined, causing social upheaval and an economic crisis— what we would call a recession today. So what causes recessions? Richard Coffin digs into the economic fluctuations that affect our modern markets.br br Lesson by Richard Coffin, directed by Augenblick Studios.