Since which of the following have american companies been worried about how they can increase competitive advantages with offshoring? world war 2, reconstruction after the civil war, the industrial revolution, or the colonization of the americas i will give a brainiest.

I would have to say during the industrial revolution. Many new inventions were being made and America started taxing goods being shipped to other countries. To remove taxes from certain countries, they moved factories to other countries so avoid Tariffs. It wasn't the colonization of America because America wasn't a country yet. It wasn't the reconstruction or world war 2 because the factories were already there from the industrial revolution.

Hope I helped!