Why did the collapse of the western roman empire lead to a new age in western europe?

The loss of two major sources of income crippled the french economy right before the onset of the great depression what were they? wine industry foreign tourism wool manufacturing war reparations

Explain how stock market speculation contributed to the great depression.

Which of the following explains why scarcity is a basic fact of life a. demand will always be greater than supply b. technology has not advanced far enough yet c. there will always be too many people on earth d. people cannot make good allocation decisions