how economic activity impacted the development of the U.S. economy.?

Question

Its my first time Help !

Answer 1

ARE YOU SERIOUS!!

How about, this, "how did your mother impact your mental and physical development!"

Answer 2

Where to begin!

You need to narrow this down. I mean, economic activity is really comprised of the voluntary transactions, at least in our market economy, by individual actors seeking their own gain. Where profit can be made, the sector will grow. Where there exist increasing returns to scale, competition will mete out a monopolistic competitor or monopoly, while decreasing returns to scale maintain a more competitive market. That's economic history in a nutshell.