Main Idea

1. The private enterprise system is place system people are free to produce, buy and sell and start a new enterprise-business. 
2. The market is place exchange of goods and services by buyers and sellers.
3. The market determines the price of products by investigate cost production and demand of consumers.
4. A supermarket has a supply the equilibrium price for manager a problem of tomatoes has multitude.
5. The Organization of the Petroleum Exporting Countries  stopped sending oil to Western nations, so there was a shortage of gas and oil in many so countries looked for ways to use less gas and oil.