Book cover for Economics

Economics

Michael Parkin

ISBN #9780133872279

12th Edition

839 Questions

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Summary

Learning Objectives

Key Concepts

Example Problems

Explanations

Common Mistakes

Summary

This section explores the distribution of income across households in the United States and globally. It defines key measures such as mode, median, and mean income, and uses tools like the Lorenz curve and Gini ratio to gauge inequality. The text illustrates that income distributions are often positively skewed, meaning that a minority of high earners lift the average income, and compares income with wealth distribution. It also examines the effects of life-cycle factors and redistribution policies on reducing inequality, while contrasting these factors across different countries and over time.

Learning Objectives

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Key Concepts

CONCEPT

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Example Problems

Example 1

What is money income? Describe the U.S. distribution of money income in 2012

Example 2

The table shows money income shares in the United States in 2001 $$\begin{array}{lc} \begin{array}{l} \text { Households } \\ \text { (quintile) } \end{array} & \begin{array}{c} \text { Money income } \\ \text { (percentage of total] } \end{array} \\ \hline \text { Lowest } & 3.5 \\ \text { Second } & 8.8 \\ \text { Third } & 14.5 \\ \text { Fourth } & 23.1 \\ \text { Highest } & 50.1 \end{array}$$ Draw a U.S. Lorenz curve in 2001 . Was the U.S. distribution of income more equal in 2001 than in 2012 (see $p .485$ )? Explain your answer.

Example 3

Incomes in China and India are a small fraction of U.S. income, but incomes in China and India are growing at more than twice the rate of U.S. incomes. a. Explain how economic inequality in China and India is changing relative to that in the United States. b. How is the world Lorenz curve and world Gini ratio changing? Use the following table to work Problems 4 and 5 The table shows the income shares in the United States, Canada, and the United Kingdom in 2009

Example 4

Draw the Lorenz curves for the United States and Canada. In which country was money income less equally distributed in 2009 ?

Example 5

Draw the Lorenz curves for the United States and the United Kingdom. In which country was income less equally distributed in 2009 ?

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Step-by-Step Explanations

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Common Mistakes

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