In 1821, Boston started the first public high school in the United States. By the close of the 19th century, public secondary schools began to outnumber.
Answer:
monopolistic competition
Explanation:
Monopolistic competition -
It refers to a type of competition , where the some sellers sell similar products but exactly the same , is referred to as monopolistic competition .
The goods and services are not exactly the copy of each other , rather are just similar in nature , with similar components .
Hence , from the given scenario of the question ,
The correct answer is monopolistic competition .
It effects how money is moved around the united states. They will hire more companies, such as contractors. Those contractors will hire other companies to do said work, they companies will hire workers. However it creates more jobs, and more government spending.