The only school that has any explanation for this is the Austrian School of Economics. Their theory of the business cycle is the reason they successfully predict every crisis to the tee (except for timing, no one can do that), while other economists are just blown away in surprise that it even happened.
Mises and Hayek wrote big and hard to read books about it, but two that explain this to the layman are "Meltdown" by Tom Woods[0] and "How An Economy Grows And Why It Crashes" by Peter Schiff[1]. The first is an explanation using the 2008 crisis, and the second is a very amusing yet educating economy lesson told as a kids' story.
Another book that can help grasp this, although I wouldn't read it first, is "The Forgotten Depression: 1921: The Crash That Cured Itself" by James Grant.
If you're interested in the actual business cycle theory, Tom Woods explained it briefly while promoting Meltdown. Explanation starts 14:03:
https://youtu.be/NBwJm68FkMc?t=844
[0] https://www.amazon.com/Meltdown-Economy-Tanked-Government-Ba...
[1] https://www.amazon.com/How-Economy-Grows-Why-Crashes/dp/B004...
Mises and Hayek wrote big and hard to read books about it, but two that explain this to the layman are "Meltdown" by Tom Woods[0] and "How An Economy Grows And Why It Crashes" by Peter Schiff[1]. The first is an explanation using the 2008 crisis, and the second is a very amusing yet educating economy lesson told as a kids' story.
Another book that can help grasp this, although I wouldn't read it first, is "The Forgotten Depression: 1921: The Crash That Cured Itself" by James Grant.
If you're interested in the actual business cycle theory, Tom Woods explained it briefly while promoting Meltdown. Explanation starts 14:03:
https://youtu.be/NBwJm68FkMc?t=844
[0] https://www.amazon.com/Meltdown-Economy-Tanked-Government-Ba...
[1] https://www.amazon.com/How-Economy-Grows-Why-Crashes/dp/B004...