Money is one of the conventions which
human societies have adopted to guard
themselves against uncertainty, by
allowing people to postpone decisions
about whether and what to buy.
Robert Skidelsky Keynes: the Return of the
Master, p. 75.
Whether the U.S. economy grows or moves into recession
makes a big difference to Mexico or even to Japan, and
whether other industrial countries shift to fiscal stimulus
makes a difference to the U.S. economy.
Dornbusch, Fischer, and Startz