As investors, it’s important for us to understand both accounting and economic concepts, like the equilibrium level of income -- it makes us better at choosing good companies that can go the distance.

Supply and demand curves express relationships between price and quantity. Equilibrium exists when supply equals demand. The shape of these curves and the equilibrium price affect small and large ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Katrina Ávila Munichiello is an experienced ...

In 1950, John Nash — the mathematician later featured in the book and film “A Beautiful Mind” — wrote a two-page paper that transformed the theory of economics. His crucial, yet utterly simple, idea ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...