The explanation of this book is that the 1929 depression was so wide, so deep, and so long because the international economic system was rendered uns… - Charles Poor Kindleberger

We were conscious of a great sense of excitement about the plan. Marshall himself was a great, great man — funny, odd but great — Olympian in his moral quality. We'd stay up all night, night after night. The first work ever done that I know about in economics on computers used the Pentagon's computers at night for the Marshall Plan. I had a tremendous sense of gratification from working so hard on it.

The monetary history of the last four hundred years has been replete with financial crises. The pattern was that investor optimism increased as economies expanded, the rate of growth of credit increased and economic growth accelerated, and an increasing number of individuals began to invest for short-term capital gains rather than for the returns associated with the productivity of the assets they were acquiring. The increase in the supply of credit and more buoyant economic outlook often led to economic booms as investment spending increased in response to the more optimistic outlook and the greater availability of credit, and as household spending increased as personal wealth surged.

A follow-the-leader process develops as firms and households see that others are profiting from speculative purchases. ‘There is nothing as disturbing to one’s well-being and judgment as to see a friend get rich.’ Unless it is to see a nonfriend get rich.