Suppose that a decline in housing prices and a decline in stock market valuations lowers wealth and leads people to spend less. This is an example of

		a change in the economy's productive capacity that changes the long-run growth trend
		a demand shock that changes the long-run growth trend
		a demand shock that generates a short-run fluctuation, taking the economy away from its long-run growth trend
		a demand shock that affects neither short-run fluctuations nor the long-run growth trend