Synthesized answer
The provided passages do not contain the answer to the question about explaining key concepts in my own words. The passages only state the title, author, publication details, and category of the book [Passage 1]. There is no information within these snippets that defines or explains any key concepts from the book.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Business Cycles by Joseph Alois Schumpeter Description: Originally published: 1st ed. New York: McGraw-Hill Book Co., 1939. Categories: Business & Economics Pages: 474 Snippet: Originally published: 1st ed. New York: McGraw-Hill Book Co., 1939.