Answer:
If a certain nation decided to stop importing goods and commodities, it would have an almost immediate negative impact on its economy. Thus, from this brake, the supply of goods that were originally imported would be significantly reduced, with which they would drastically increase their value, thereby increasing inflation in the country.
In addition, citizens could not easily access these goods, which could produce social consequences (such as lack of medicines, for example).
On the other hand, the producing nations of these goods would impose trade restrictions on the nation, which would reduce the benefits of trade, increasing the country's fiscal deficit.