Explain the reasons for American Imperialism

American imperialism was motivated by four main factors: economic, political, geographic, and cultural. The economic factors were desires to find new markets for trade. By extending colonial power throughout the world, the US would have new trading partners and markets.

Explanation:

According to enotes, "American imperialism was motivated by four main factors: economic, political, geographic, and cultural. The economic factors were desires to find new markets for trade. By extending colonial power throughout the world, the US would have new trading partners and markets."

The three main reasons for American Imperialism is:

Explanation:

i believe the answer would be 1.

porter is writing economic history because he is focusing on the cost of developing vaccines.