//-->
A Comparison of Two New Measures of Tax Progressivity [Measurement of Tax Progressivity: An International Comparison]. [Measurement of Tax Progressivity].
Formby, John P, (1981)
On the Measurement and Trend of Inequality: A Reconsideration.
Formby, John P, (1989)
Difficulties in the Measurement and Comparison of Tax Progressivity: The Case of North America
Formby, John P, (1984)