Short-Run vs. Long-Run Aggregate Supply Curves

Any change that lowers the quantity that buyers wish to purchase at any given price shifts the demand curve to the left.

Aggregate demand is a schedule or curve that shows the total quantity of goods and services demanded at different price levels. Aggregate supply is a schedule or curve that shows the total quantity of goods and services produced at different price levels.

The Supply and Demand Simulation consist of microeconomics and macroeconomics concepts. The concepts are explained and how they apply to the principle of microeconomics and macroeconomics. The simulations presents shifts in the supply and demand curve, the rationale for the shift is given. Each shift is analyzed showing the effects of the equilibrium price, quantity, and decision making for the company presented. An explanation of the price elasticity affects the pricing strategy for consumers and company.

If we consider this supply and demand diagram prior to Government intervention (red line), the market leads to equilibrium price and quantity (P1, Q1) determined at the intersection of the supply (or MPC) and demand curve. Due to the

[pic] A decrease in production costs creates a downward shift in the short-run aggregate supply curve. Wages continue to fall until labor market equilibrium returns them to long term levels. This new equilibrium point is the point on the graph where D2 meets S2.

Supply is the total amount of a specific good that is available to the consumers. The supply of lobsters depends on the ocean temperature and since the ocean temperature is increasing, lobsters may once again come in a couple more weeks earlier than usual. In 2012, this caused the quantity of lobster to increase significantly, thus the supply curve shifted to the right. The shift caused the equilibrium price to decrease and the quantity to increase. On the other hand, if the ocean temperature is too low, then the lobster production rate is lowered. The supply curve will then shift to the left and cause the equilibrium price to increase and the quantity to decrease. The lobsterman cannot control the supply of lobsters since the production depends on the temperature. Another economic topic that came to my mind is the demand of a product. Demand is a consumer’s willingness to pay a price for a specific good. The demand curve would shift to the right if the price of the lobsters decreases due to mass production and vice

The long-run equilibrium of the economy is found where the aggregate-demand curve crosses the long-run aggregate-supply curve (point A). When the economy reaches this long-run equilibrium, the expected price level will have adjusted to equal the actual price level. As a result, the short-run aggregate-supply curve crosses this point as well.

Red line goes up. Not enough supply. New equilibrium point (higher on the price axis) *shift to the right. * price increase and quantity increase.

Supply and demand concepts are all around us. Take for example a shoe factory. From a macroeconomic perspective everybody needs shoes. This type of product is a necessary and not a luxury product. So, there will always be a higher demand of shoes. The company will always try to find the best price to sell the shoes so that the demand increases. The price of shoes is also determined by the production cost of the shoe since it needs to be higher than it. Producing the shoes does not only depend on the company itself but on other macroeconomic indicators. For example, if oil prices increase, the company will need to increase the price of the shoes since it would cost more to pay the suppliers for delivering the materials needed in the production process. Also, as the law of supply says, when supply increases, the price increases. If the supply

This causes the price and the quantity move in opposite directions in a supply curve shift. Also, if the quantity supplied decreases at any given price the opposite will happen.

When there is a change of one of the factors of supply- like changes in the prices of production inputs like labour or capital; a change in production technology and its associated productivity change; or the amount of competition in a specific product market- there is a corresponding change in the supply curve. For example, if worker productivity improves due to some human capital or technology investment, then the costs of production decrease. This exerts a positive effect on the supply curve shifting it right, where the new market equilibrium is at a higher quantity and a lower price, holding everything else constant. There can also be a negative shift that moves the supply curve to the left, with the resulting market clearing price being higher and quantity lower, ceteris

Three reasons the aggregate-demand curve slopes downward are the wealth effect, the interest-rate effect, and the exchange rate effect. The wealth effect explains that when the price level decreases, each consumer is wealthier because the real value of his or her dollar has increased. Wealthier consumers spend more, increasing the demand for consumption goods and services. Conversely, if the price level rises, the real value of the dollar will decrease, effectively making consumers poorer. Poorer consumers will spend less on consumption, decreasing the demand for goods and services.

The recent fall of the United States economy has created a society of fear, insecurity, and doubtful investors, retirees, and consumers world-wide. Economists from around the world have come together to solve world-wide economic issues and bring stability back to businesses, households, and the government. Economics teaches you how to approach problems; it does not provide what is right or what is wrong, nor does it provide you with a definitive answer. Consistent evaluation of economic factors like unemployment, economic expectations, consumer income, and interest rates, can prove to be highly effective.

Elasticity : rising or falling price lead changes in quantity of demand, and the quantity of supply and this so-called elasticity

Like the law of demand, the law of supply demonstrates the quantities that will be sold at a certain price. But unlike the law of demand, the supply relationship shows an upward slope. This means that the higher the price, the higher the quantity supplied. Producers supply more at a higher price because selling a higher quantity at a higher price increases revenue.