A free enterprise economy is where the market forces of supply and demand determine the price of goods and services. So, if you wanted 10 pineapples and fifty other people wanted them as well, and there were 10 pineapples then the pineapples would go to the person who is willing to pay the most for them. But let's say that there are two people and you only want one pineapple and there were fifty on the market, then the pineapple's price would be determined by who was offering the pineapple for sale for the least amount of money.