Q1. Opportunity Cost and Comparative Advantage: Saudi Arabia and United States

Background

Topic: Production Possibilities Frontier (PPF), Opportunity Cost, Absolute and Comparative Advantage

This question tests your understanding of how to calculate opportunity costs, and how to determine which country has an absolute or comparative advantage in producing certain goods. These concepts are foundational for understanding gains from trade and the rationale for specialization in international economics.

Key Terms and Formulas:

• Opportunity Cost: The value of the next best alternative foregone when making a choice.

• Absolute Advantage: The ability to produce more of a good with the same resources than another producer.

• Comparative Advantage: The ability to produce a good at a lower opportunity cost than another producer.

To calculate opportunity cost for each good, use the formula:

Step-by-Step Guidance

1. For Saudi Arabia, calculate the opportunity cost of producing 1 barrel of oil and 1 bushel of corn using the table values.

2. Repeat the calculation for the United States for both goods.

3. Compare the maximum outputs to determine who has the absolute advantage in oil and corn production.

4. Compare the opportunity costs to determine who has the comparative advantage in each good.

5. Set up your answers but stop before writing the final values.

Try solving on your own before revealing the answer!

Q2. Complete Specialization and Gains from Trade Table

Background

Topic: Specialization, Gains from Trade, Consumption Possibilities

This question asks you to fill in a table showing production, trade, and consumption for Saudi Arabia and the United States, both with and without trade. It demonstrates how countries can benefit from specializing in the good for which they have a comparative advantage and then trading.

Key Terms and Formulas:

• Specialization: Focusing resources on the production of one good where a country has a comparative advantage.

• Gains from Trade: The increase in consumption possible due to specialization and exchange.

Step-by-Step Guidance

1. Identify which good each country should specialize in based on comparative advantage (from Q1).

2. Fill in the 'With Trade' production row: each country produces only the good in which it specializes.

3. Determine the trade action (e.g., how much of each good is traded between countries).

4. Calculate each country's consumption after trade by adding imports to their own production and subtracting exports.

5. Set up the calculation for the increase in consumption (gains from trade) but do not compute the final values yet.

Try solving on your own before revealing the answer!

Q3. Supply and Demand Schedule: Equilibrium, Shortage, and Surplus

Background

Topic: Market Equilibrium, Shortage, Surplus

This question provides a supply and demand schedule and asks you to graph the curves, identify the equilibrium price and quantity, and determine if there is a shortage or surplus at each price.

Key Terms and Formulas:

• Equilibrium Price: The price at which quantity demanded equals quantity supplied.

• Shortage: Quantity demanded > quantity supplied at a given price.

• Surplus: Quantity supplied > quantity demanded at a given price.

Step-by-Step Guidance

1. Plot the quantity demanded and quantity supplied at each price on a graph (price on the vertical axis, quantity on the horizontal axis).

2. Identify the price where quantity demanded equals quantity supplied (equilibrium).

3. For each price, calculate the difference between quantity demanded and quantity supplied to determine if there is a shortage or surplus.

4. Label the equilibrium point and indicate the presence of shortages or surpluses at other prices.

5. Set up the table or graph but do not state the equilibrium price/quantity yet.

Try solving on your own before revealing the answer!

Q4. Calculating CPI and Inflation Rate Using a Basket of Goods

Background

Topic: Consumer Price Index (CPI), Inflation Rate

This question provides price and quantity data for milk and honey over three years. You are asked to calculate the CPI for 2014 and 2015 using 2013 as the base year, and then compute the inflation rate from 2014 to 2015.

Key Terms and Formulas:

• Consumer Price Index (CPI): Measures the average change in prices paid by consumers for a fixed basket of goods and services.

• Inflation Rate: The percentage change in the CPI from one year to the next.

Key formulas:

Step-by-Step Guidance

1. Calculate the cost of the basket (100 quarts of milk and 50 quarts of honey) for each year using the given prices.

2. Compute the CPI for 2014 and 2015 using 2013 as the base year.

3. Use the CPI values to set up the calculation for the inflation rate from 2014 to 2015.

4. Stop before plugging in the final numbers for the inflation rate.

Try solving on your own before revealing the answer!