Real-World Examples of Aggregate Supply Shifts (SRAS & LRAS)

📚 Quick Study Guide

• 🌱 Aggregate Supply (AS) represents the total quantity of goods and services that firms are willing and able to produce at different price levels.
• ⏱️ Short-Run Aggregate Supply (SRAS) is influenced by factors like wages, raw material prices, and productivity.
• 🧱 Long-Run Aggregate Supply (LRAS) is determined by factors that affect the economy's potential output, such as technology, capital, and labor. It's typically vertical.
• 💸 Shifts in SRAS occur when production costs change. An increase in costs shifts SRAS left; a decrease shifts it right.
• ⚙️ Shifts in LRAS occur when there are changes in the economy’s productive capacity. Technological advancements or increased capital stock shift LRAS right.
• 🧮 Key formulas to remember:
  • SRAS: $Y = f(P, K, L)$ (Output depends on price level, capital, and labor)
  • LRAS: $Y = A \cdot F(K, L)$ (Output depends on technology (A), capital (K), and labor (L))

Practice Quiz

1. Which of the following would most likely cause a shift to the right in the SRAS curve?
   1. A decrease in government spending
   2. An increase in the price of raw materials
   3. A technological improvement
   4. An increase in nominal wages
2. An increase in the capital stock of a country will most likely shift:
   1. Only the SRAS curve to the right
   2. Only the LRAS curve to the right
   3. Both the SRAS and LRAS curves to the right
   4. Neither the SRAS nor the LRAS curve
3. Suppose the price of oil, a key input in production, increases significantly. What is the most likely short-run impact on the aggregate supply curves?
   1. SRAS shifts right
   2. SRAS shifts left
   3. LRAS shifts right
   4. LRAS shifts left
4. A country experiences a surge in immigration, increasing its labor force. Assuming full employment is maintained, what is the likely long-run effect?
   1. LRAS shifts left
   2. SRAS shifts left
   3. LRAS shifts right
   4. SRAS shifts right
5. The discovery of a new, highly efficient manufacturing process would most likely cause:
   1. A leftward shift in SRAS
   2. A rightward shift in SRAS
   3. A leftward shift in LRAS
   4. A rightward shift in LRAS
6. Which of the following government policies would most likely shift the LRAS to the right?
   1. Increased unemployment benefits
   2. Increased taxes on corporations
   3. Investment in infrastructure (roads, bridges, etc.)
   4. Decreased spending on education
7. What is the effect on the SRAS curve if there is a widespread decrease in worker productivity?
   1. SRAS shifts right
   2. SRAS shifts left
   3. SRAS does not shift
   4. SRAS becomes vertical