solved I’m trying to study for my Health & Medical course

I’m trying to study for my Health & Medical course and I need some help to understand this question.

Distinguish between the public interest theory and the special interest theory of government intervention.
Describe how private insurers and government payers influence actual reimbursement, payment for services, and methods of payment.
Describe how the market has influenced the need for integrated delivery systems.

Assessment Description
How are Medicaid and Medicare similar? How are they different?
Essentials of Health Economics
Dewar, D. M. (2017). Essentials of health economics (2nd ed.). Burlington, MA: Jones and Bartlett Learning. ISBN-13: 9781284054620
Government and Policy for U.S. Health Leaders
Higbea, R., & Cline, G. (2021). Government and policy for U.S. health leaders (2nd ed.). Burlington, MA: Jones and Bartlett Learning. ISBN-13: 9781284207767 (Available as a custom eBook – includes only Chapter 6)