4: Elasticity
- Page ID
- 312693
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In this chapter, you will learn about:
- Price Elasticity of Demand and Price Elasticity of Supply
- Polar Cases of Elasticity and Constant Elasticity
- Elasticity and Pricing
- Elasticity in Areas Other Than Price
- 4.1: Introduction to Elasticity
- This page examines consumer behavior in response to price changes, illustrated by Netflix's 2011 price increase. It explains economic elasticity, noting that higher prices generally reduce demand while increasing supply. The concept is further applied to cigarette taxation, emphasizing the importance of understanding elasticity for predicting consumption changes and tax revenues.
- 4.2: Price Elasticity of Demand and Price Elasticity of Supply
- This page explains the concept of price elasticity of demand and supply, detailing elasticity as the ratio of percentage changes in quantity to price changes. It categorizes elasticity into elastic, inelastic, and unitary types and introduces the Midpoint Method for calculations. The distinction between elasticity and slope is highlighted, noting that elasticity varies along demand curves. Examples demonstrate the differences in elasticity assessments at various points on the curve.
- 4.3: Polar Cases of Elasticity and Constant Elasticity
- This page covers elasticity in economics, detailing three extreme cases: infinite elasticity (perfectly elastic), where quantity changes infinitely with price; zero elasticity (perfectly inelastic), where quantity remains unchanged despite price changes, common in necessities; and constant unitary elasticity, where price and quantity change by the same percentage. It includes demand and supply curves to illustrate these concepts and their implications in economic analysis.
- 4.4: Elasticity and Pricing
- Studying elasticities is useful for a number of reasons, pricing being most important. Let’s explore how elasticity relates to revenue and pricing, both in the long run and short run. But first, let’s look at the elasticities of some common goods and services.
- 4.5: Elasticity in Areas Other Than Price
- This page explains elasticity in economics, covering income and cross-price elasticity, and differentiates between normal and inferior goods. It also touches on elasticity in labor and financial markets. Additionally, it outlines a case where a company underestimated subscriber loss from a price increase due to inelastic demand, showing misjudgment in demand elasticity influenced by emerging substitutes.
- 4.6: Key Terms
- This page explains elasticity in economics, focusing on its measurement of responsiveness between variables. It covers types of elasticity such as constant unitary, elastic, inelastic, infinite, and perfect inelasticity. The page also addresses cross-price elasticity of demand and elasticity of savings, along with tax incidence principles, emphasizing their importance in analyzing how price changes affect the quantity demanded or supplied of goods and services.
- 4.7: Key Concepts and Summary
- This page explores price elasticity of demand and supply, which indicates how quantity adjusts to price changes. It categorizes elasticity into elastic, inelastic, and unitary, noting extreme cases and constant unitary elasticity. The discussion emphasizes that demand and supply are typically inelastic in the short run but more elastic in the long run, affecting tax incidence.
- 4.8: Self-Check Questions
- This page covers the calculation and classification of price elasticity for demand and supply, highlighting unitary elasticity and differences in demand and supply curves. It explores how cost shifts influence pricing strategies for car manufacturers and potential revenue changes from altering prices based on demand elasticities for new pharmaceuticals. Additionally, it addresses income elasticity related to consumer goods and the effects of cross-price elasticity on demand shifts.
- 4.9: Review Questions
- This page discusses elasticity in economics, specifically price elasticity of demand and supply. It explores how different elasticities influence equilibrium price and quantity in various situations and examines factors affecting elasticity in the short and long term. Additionally, it outlines the impact of tax burdens on consumers and provides formulas for various types of elasticity, including income elasticity of demand and cross-price elasticity, among others.
- 4.10: Critical Thinking Questions
- This page covers price elasticity of demand and supply, examining factors influencing elasticity in different sectors, particularly air travel classes. It discusses the relationship between elasticity and demand curves, highlights high supply elasticity industries, and differentiates the pricing of essentials and luxuries. The implications of toll pricing and excise tax on demand elasticity are analyzed, along with how normal goods are categorized by income elasticity.
- 4.11: Problems
- This page covers elasticity calculations for supply and demand curves, exploring how changes in quantities and prices affect elasticity. It discusses real-world examples, such as the inelastic supply of art and medical devices, and their pricing implications. The page also examines employment policies for low-skilled workers, weighing the importance of supply versus demand shifts in achieving employment or wage objectives.