Answer:
https://www.sparknotes.com/lit/odyssey/section8/
Explanation: Odyssey Books 15 - 16, i think thats where you'll find it. (Copy and Paste)
America is a 1st world country with plenty of job opportunities and better living conditions a than most other countries.
<span>Provide a national currency
Provide and established set of laws
Provide international trade
Provide national defense
</span>
Technology is probably the answer that you need. Other answers such as internet, cell phones, and airplanes are suitable answers as well.