What will happen to the price of teddy bears if puppy dogs become the most popular stuffed toy?

What will happen to the price of soccer balls if more and more boys and girls are learning to play soccer?

What will happen to the price of shoes if shoe producers have to pay higher wages to their workers?

What will happen to the price of T-Shirts if T-Shirt businesses now use machines that produce twice as many shirts in one hour?

What will happen to the price of new cars if a weak economy causes people to have lower incomes?

What will happen to the price of gasoline if the price of crude oil (one of the main ingredients in gasoline) falls?

What will happen to the price of baby cribs if there is a large increase in the number of babies born?

What will happen to the price of tomatoes if more farmers decide to start growing tomatoes?

What will happen to the price of wheat if Farmers have to start paying more for fertilizer?