Q1. Which of the following would be considered a scarce resource for producers?

Background

Topic: Scarcity and Factors of Production

This question tests your understanding of what resources are considered scarce in economics, especially from the perspective of producers.

Key Terms:

• Scarce resource: A resource that is limited in supply and must be allocated among competing uses.

• Factors of production: Inputs used to produce goods and services (e.g., labor, land, capital).

Step-by-Step Guidance

1. Review the definition of scarcity: In economics, a resource is scarce if it is not freely available in unlimited quantities.

2. Consider each option: Low-skill labor, land, and machinery. Are these resources limited and do producers need to make choices about their use?

3. Think about whether all these resources are considered factors of production and if they are subject to scarcity.

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Q2. According to your instructor, what is the key element of an experiment?

Background

Topic: Experimental Design in Economics

This question tests your understanding of what makes an experiment valid and reliable in economics.

Key Terms:

• Experiment: A method of testing hypotheses by manipulating variables and observing outcomes.

• Randomization: Assigning subjects to groups randomly to eliminate bias.

Step-by-Step Guidance

1. Recall the main components of an experiment: data, subjects, statistical analysis, and randomization.

2. Think about which element is essential for ensuring that the results are not biased by pre-existing differences.

3. Consider why randomization is often highlighted as a key element in experimental economics.

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Q5. Let the supply curve be given by . At a price of 27, what is the dollar value of producer surplus?

Background

Topic: Producer Surplus and Supply Curves

This question tests your ability to calculate producer surplus given a linear supply curve and a market price.

Key Terms and Formulas:

• Producer surplus: The difference between the market price and the minimum price at which producers are willing to sell, summed over all units sold.

• Supply curve:

• Producer surplus formula for a linear supply curve:

Step-by-Step Guidance

1. Set the supply curve equal to the market price to solve for the quantity supplied: .

2. Calculate the quantity supplied at .

3. Identify the intercept price (the price at which ) from the supply curve.

4. Set up the formula for producer surplus using the calculated quantity and intercept price.

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Q8. Opportunity cost is a measure of:

Background

Topic: Opportunity Cost

This question tests your understanding of the concept of opportunity cost and its role in economic decision-making.

Key Terms:

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

Step-by-Step Guidance

1. Review the definition of opportunity cost and how it differs from explicit costs and benefits.

2. Consider each option and determine which best captures the idea of opportunity cost.

3. Think about examples where opportunity cost is relevant in everyday decisions.

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Q13. Suppose the population of Wyoming (540,000) increases by 10,000 people. How large of a percent change is this?

Background

Topic: Percentage Change Calculations

This question tests your ability to calculate the percent change in a variable, a common skill in economics.

Key Formula:

Step-by-Step Guidance

1. Identify the original population () and the increase ().

2. Calculate the new population: .

3. Set up the percent change formula using the original and new values.

4. Plug the values into the formula, but stop before calculating the final percentage.

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Q23. What is the equation for the price elasticity of demand?

Background

Topic: Elasticity

This question tests your knowledge of the formula for price elasticity of demand, which measures how responsive quantity demanded is to changes in price.

Key Formula:

Step-by-Step Guidance

1. Recall the definition of price elasticity of demand.

2. Review the formula and what each component represents.

3. Consider how to interpret the sign and magnitude of elasticity.

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Q24. Consider the following demand curve. Compute the Arc elasticity of demand

Background

Topic: Arc Elasticity of Demand

This question tests your ability to calculate the arc (midpoint) elasticity of demand between two points on a demand curve.

Key Formula:

Step-by-Step Guidance

1. Identify the two price points ( and ) and the corresponding quantities ( and ) from the demand curve.

2. Calculate the average price and average quantity.

3. Compute the percentage change in quantity and price using the midpoint formula.

4. Set up the arc elasticity formula with your calculated values, but stop before the final calculation.

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Q31. Assume that the price of a good increases by 10%, and that the elasticity of demand is -2. What will be the percent change in quantity demanded by the market?

Background

Topic: Elasticity and Demand Response

This question tests your ability to apply the concept of price elasticity to predict changes in quantity demanded.

Key Formula:

Step-by-Step Guidance

1. Identify the given elasticity (-2) and percent change in price (10%).

2. Set up the formula for percent change in quantity demanded.

3. Multiply the elasticity by the percent change in price, but stop before calculating the final value.

Try solving on your own before revealing the answer!