If the u. S. Dollar appreciates and prices remain the same at home and abroad, foreign goods become less expensive relative to American goods, pushing the U. S. Trade balance toward a deficit.
A currency appreciates when the value of the currency increases. For example if $1 is equivalent to 1000 rubles. If the US dollar appreciates, it can buy more rubles. For example 1200 rubles.
When a currency appreciates, it purchasing power increases. Thus, import would increase and export would reduce. This would lead to a negative trade balance.
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