The Connecticut Compromise helped to solve the issue of representation in Congress at the Philadelphia (aka Constitutional) Convention.
The Connecticut Compromise took elements from the New Jersey Plan and the Viriginia Plan in order to create the modern structure of Congress. In this case, the Connecticut Compromise made it so that the number of representatives in the House of Representatives would be based on a states population. The greater the population, the greater number of representatives. This was an idea taken from the Virginia Plan.
On the other hand, the Senate would be structured to ensure that each state had 2 Senators, regardless of population. This was an element taken from the New Jersey Plan.
It is a state of market where the entire market is lead by a few owners of production factories or sellers. This wasn't a result of the new market structures in the late 1800s.