Answer:
The role that financial intermediaries play in that diagram of the economy is to leakage or inject money.
Explanation:
To begin with, the concept known as "Circular Flow of Income" refers to a model that is famously known in the economics sciences due to the fact that it is a graphic that shows how the primary entities of the economy of a country interact with each other in order to have a particular outcome expected in the diagram. Therefore that in that context, the financial institutions play the role of intermediaries inside the flow meaning that the can they can either leakage or inject money to the flow. The first one they do it by helping the households to save money in accounts. And the second one they do it by helping the private sector in terms of investing regarding businesses.
