In a communist economy, all economic activities are controlled by (a) such economies are also known as (b)

a. government, business owners, or individuals
b. command economies, traditional economies, market economies

Cost and benefit in economic example

The united states constitution gives the the power to regulate interstate commerce.

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.