The battle of saratoga did not allow the british to what

How do economists measure the success, or shortcomings, of the economy?

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

Which continental leader form a franco american alliance in 1778