We are now to study the nature of these cycles.
Sec.2.

#Definitions.# Crisis means, generally, a decisive moment or turning point.

The word crisis suggests a brief period, a moment, something that is sudden, severe, and soon over.

In medical usage it is the period when the disease must take a turn for better or for worse.

As used in economics, the term, however, implies a sudden change of business conditions for the worse, a collapse of prosperity.
What precedes has not the appearance of disease, but rather that of exuberant health.