if speculators lost confidence in foreign economies and so wanted to buy more us' bonds the dollar would appreciate would cause aggregate demand to shift left.
When total consumer spending falls, the aggregate demand curve tends to move to the left. 2 It's possible that consumers are spending less because of growing living expenses or higher taxes. If consumers anticipate future price increases, they may choose to spend less and save more.
Consumption can alter for a variety of reasons, including changes in asset levels, taxes, expectations for future income, and income fluctuations.
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