microeconomicdemandandsupply-閱讀頁
2024-09-08 17:55本頁面
【正文】 rve shifts leftward. The Number of Suppliers The larger the number of suppliers of a good, the greater is the supply of the good. An increase in the number of suppliers shifts the supply curve rightward. Supply 169。 2020 Pearson AddisonWesley Figure shows an increase in supply. An advance in the technology for producing energy bars increases the supply of energy bars and shifts the supply curve rightward. Supply 169。 2020 Pearson AddisonWesley Movement Along the Supply Curve When the price of the good changes and other influences on sellers’ plans remain the same, the quantity supplied changes and there is a movement along the supply curve. Supply 169。 2020 Pearson AddisonWesley Equilibrium is a situation in which opposing forces balance each other. Equilibrium in a market occurs when the price balances the plans of buyers and sellers. The equilibrium price is the price at which the quantity demanded equals the quantity supplied. The equilibrium quantity is the quantity bought and sold at the equilibrium price. ? Price regulates buying and selling plans. ? Price adjusts when plans don’t match. Market Equilibrium 169。 2020 Pearson AddisonWesley If the price is $ a bar, the quantity demanded exceeds the quantity supplied. There is a shortage of 9 million energy bars. If the price is $ a bar, the quantity demanded equals the quantity supplied. There is neither a shortage nor a surplus of energy bars. Market Equilibrium 169。 2020 Pearson AddisonWesley An Increase in Demand Figure shows that when demand increases the demand curve shifts rightward. At the original price, there is now a shortage. The price rises, and the quantity supplied increases along the supply curve. Predicting Changes in Price and Quantity 169。 2020 Pearson AddisonWesley All Possible Changes in Demand and Supply A change demand or supply or both demand and supply changes the equilibrium price and the equilibrium quantity. Predicting Changes in Price and Quantity 169。 2020 Pearson AddisonWesley When demand decreases, the equilibrium price falls and the equilibrium quantity decreases. Predicting Changes in Price and Quantity 169。 2020 Pearson AddisonWesley When supply decreases, the equilibrium price rises and the equilibrium quantity decreases. Predicting Changes in Price and Quantity 169。 2020 Pearson AddisonWesley Decrease in Both Demand and Supply A decrease in both demand and supply decreases the equilibrium quantity. The change in equilibrium price is uncertain because the decrease in demand lowers the equilibrium price and the decrease in supply raises it. Predicting Changes in Price and Quantity 169。 2020 Pearson AddisonWesley Increase in Demand and Decrease in Supply An increase in demand and a decrease in supply raises the equilibrium price. The change in equilibrium quantity is uncertain because the increase in demand increases the equilibrium quantity and the decrease in supply decreases it. Predicting Changes in Price and Quantity
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