In Arizona, focusing only on income taxes, the tax structure is considered Question 3 options: progressive retroactive regressive comperhensive How is the Lorenz curve related to the Gini coefficient Question 4 options: Gini and Lorenz were both mathematicians at Oxford Gini and Lorenz were both students of Vilfredo Pareto at Milan Lorenz was interested in the weather and Gini was interested in poverty The Gini coefficient is calculated using the Lorenz curve to determine the degree of inequality