(a) Shape of Lorenz curve prior to collection and reduction of the tax.

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Chapter 30, Problem 4P

To determine

(a)

Shape of Lorenz curve prior to collection and reduction of the tax.

To determine

(b)

Shape of Lorenz curve after to collection and reduction of the tax.

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2.1 In an effort to make the distribution of income more nearly equal, the government of a country passes a tax law that changes the Lorenz curve from y = 0.97x for one year to y = 0.33x + 0.67x for the next year. Find the Gini coefficient of income for both years. (Round your answers to three decimal places.) before after Compare the distributions of income before and after the tax law was passed. Interpret the result. O The change increases the difference in incomes. The change makes no difference in incomes. O There is not enough information to compare the incomes. The change decreases the difference in incomes. O The change makes the incomes equal. Need Help? Read It

Scientists studying the economics of a country, community, or group of people are often interested in the distribution of wealth, where wealth is understood to mean the income or the personal assets of individual households. A powerful tool for illustrating how wealth is distributed across a society is the Lorenz curve (invented by the American economist Max Otto Lorenz in 1905). A typical Lorenz curve is given by y = L(x), where 0 < x < 1 and 0 < y < 1. The variable I represents the fraction of all households in the society and y = L(x) represents the fraction of the total wealth that is owned by the fraction x of the society. For example, for the Lorenz curve shown in Figure 1, we see that L(0.5) = 0.2, which means that 0.5 (50%) of the society owns 0.2 (20%) of the wealth. bottom botom y A 1- Line of perfect equality 0.8 of households control 0.6 of the wealth. Lorenz curve 0.5 of households control 0.2 of the wealth. 0.2 B 0.5 0.8 a1 1 Fraction of Households Figure I Fraction of…