11. Calculating the price elasticity of supply Yakov is a volunteer fire fighter living in Chicago who teaches clarinet lessons to supplement their normal income. At an hourly wage rate of $40, they are willing to teach 6 hours per week. Upping the wage to $55 per hour, they are willing to teach 8 hours per week. Using the midpoint method, the elasticity of Yakov's labor supply between the wages of $40 and $55 per hour is approximately that Yakov's supply of labor over this wage range is which means

Why are the factors that shift the demand for a product different from the factors that shift the demand for labor? Why are the factors that shift the supply of a product different from those that shift the supply of labor?

The Stopdecay Company sells an electric toothbrush for $25. Its sales have averaged 8,000 units per month over the past year. Recently, its closest competitor, Decayfigh ter, reduced the price of its electric toothbrush from $35 to $30. As a result, Stopde cays sales declined by 1,500 units per month. What is the arc cross elasticity of demand between Stopdecays toothbrush and Decayfighters toothbrush? What does this indicate about the relationship between the two products? If Stopdecay knows that the arc price elasticity of demand for its toothbrush is 1.5, what price would Stopdecay have to charge to sell the same number of units as it did before the Decayfighter price cut? Assume that Decayfighter holds the price of its toothbrush constant at $30. What is Stopdecays average monthly total revenue from the sale of electric toothbrushes before and after the price change determined in part (b)? Is the result in part (c) necessarily desirable? What other factors would have to be taken into consideration?

Suppose Erin, the owner-manager of a local hotel projects the following demand for her rooms: a. Calculate the price elasticity of demand between 90 and 110. b. Is the price elasticity of demand between 90 and 110 elastic, unit elastic, or inelastic? c. Will Erins total revenue rise if she increases the price from 90 to 110? d. Calculate the price elasticity of demand between 110 and 130. e. Is the price elasticity of demand between 110 and 130 elastic, unit elastic, or inelastic? f. Will Erins total revenue rise if she increases the price from 110 to 130?

Name some factors that can cause a shift in the demand curve in labor markets.

What are the major determinants of a products price elasticity of demand? Studies indicate that the demand for Florida oranges, Bayer aspirin, watermelons, and airfares to Europe are elastic. Why?

(Price Elasticity of Supply) Calculate the price elasticity of supply for each of the following combinations of price and quantity supplied. In each case, determine whether supply is elastic, inelastic, perfectly elastic, perfectly inelastic, or unit elastic. a. Price falls from $2.25 to $1.75; quantity supplied falls from 600 units to 400 units. b. Price falls from $2.25 to $1.75; quantity supplied falls from 600 units to 500 units. c. Price falls from $2.25 to $1.75; quantity supplied remains at 600 units. d. Price increases from $1.75 to $2.25, quantity supplied increases from 466.67 units to 600 units.

Plot the price and quantity data given in the demand schedule of exercise 1. Put price on the vertical axis and quantity on the horizontal axis. Indicate the price elasticity value at each quantity demanded. Explain why the elasticity value gets smaller as you move down the demand curve.

For each of the following, identify where demand is elastic, inelastic, perfectly elastic, perfectly inelastic, or unit elastic: a. Price rises by 10 percent, and quantity demanded falls by 2 percent. b. Price falls by 5 percent, and quantity demanded rises by 4 percent. c. Price falls by 6 percent, and quantity demanded does not change. d. Price rises by 2 percent, and quantity demanded falls by 1 percent.

If the midpoint on a straight-line demand curve is at a price of $7, what can we say about the elasticity of demand for a price change from $12 to $10? What about from $6 to $4?