The correct answer to this open question is the following.
Although you forgot to attach the options for this question we can say the following.
The concept that helps determine production in a pure market economy is "business competition."
In a market economy, the prices of goods and services are based on suppñy and demand. This is the economic system also known as Capitalism, the free enterprise system in which competition is an important component of the market. In market economies, the government does not intervene to regulate the market, just in extreme cases.
The opposite of a market economy is the command economy. In this kind of economy, the government decides the products that are going to be produced, the amount of production, and the price of the products.
