Answer: Free-Market Economy
Step-by-step explanation:
A Free Market which is usually referred to as Capitalism, derived it's name from the freedom from Government control that it champions.
In a free Market, there is little Government control of businesses and Economic activity is driven by the laws of Supply and Demand and all transactions are done in the private sector. There is no limit on what people here can buy or sell (so long as it is legal of course) as well.
Merksenia has all these characteristics and so is a Free-Market Economy.