Hello,
The 'free market' generally refers to a buying and trading system where the price of goods are set by mutual consent of both buyer and trader. This is quintessential for economic growth in many ways.
When the market is state controlled, this tends to effect the economy in a negative way. This is become economic power becomes concentrated in a small number, amongst the higher echelons of government. This tends to stymie the circulation of resources, thus prohibiting adequate growth.
Free market negates this process. In this form of economic exchange, power is much more balanced between consumers and sellers, which ultimately stimulates higher exchange and in turn, a boost in economic growth. In this sense, it would seem beneficial to the country to entertain the concept of free market.
I hope this helps.