A free market system is used in economics to determine the prices for goods and services. These prices are set by consumers and the market so they can vary based on time of year or product. The laws within the market in a free market system are not controlled by the government but controlled by supply and demand. Due the consumers controlling the market prices, it's important for the government to pass laws on theft, coercion and fraud because even though the market isn't heavily controlled by the government, there is still laws that have to be followed. The goods and services are not free and are not to be stolen just because.