Answer:
forced U.S. to become more self-reliant
Explanation:
The 1807 Embargo Act in the short run resulted in very serious negative effects, but in the long run it helped the American economy to be more self-reliant.
Some of the negative effects on the short run include:
-agricultural products' prices and earnings decreased
-shipping-related industries were devastated
-existing markets were wrecked
-unemployment increased
-smuggling was widely endorsed by the public
-prices of domestic shipping increased
-imports and exports decreased
As a very positive effect, specially on the long run, it increased reliance on domestic manufacturing
.