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The Distribution of Top Incomes in Five Anglo-Saxon Countries Over the Twentieth Century


Anthony B. Atkinson


University of Oxford - Nuffield College; CESifo (Center for Economic Studies and Ifo Institute)

Andrew Leigh


Australian National University - Economics Program, Research School of Social Sciences


IZA Discussion Paper No. 4937

Abstract:     
Taxation data have been used to create long-run series for the distribution of top incomes in quite a number of countries. Most of these studies have focused on the national experience of individual countries, but we can also learn from cross-country comparisons. Comparative analysis is therefore the next stage in the research program. At the same time, we know from other fields that there are dangers in simply pooling all available time series, without regard to the specific nature of data and reality. In this paper, we therefore adopt an intermediate approach, taking five Anglo-Saxon countries that have relatively similar backgrounds and tax systems: Australia, Canada, New Zealand, the UK, and the US. The first part of the paper tackles the challenge of comparability of income-tax based estimates across countries and across time. The second part summarizes the evidence about top income shares. Across these five countries, the shares of the very richest exhibit a strikingly similar pattern, falling in the three decades after World War II, before rising sharply from the mid-1970s onwards. The share of the top 1 percent is highly correlated across Anglo-Saxon countries, more so than the share of the next 4 percent. The third part of the paper looks at the relationship between taxes and top income shares. Controlling for country and year fixed effects, we find that a reduction in the marginal tax rate on wage income is associated with an increase in the share of the top percentile group. Likewise, a fall in the marginal tax rate on investment income (based on a lagged moving average) is associated with a rise in the share of the top percentile group.

Number of Pages in PDF File: 54

Keywords: inequality, taxation, Australia, Canada, New Zealand, United Kingdom, United States

JEL Classification: D31, H23, N30

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Date posted: June 29, 2010  

Suggested Citation

Atkinson, Anthony B. and Leigh, Andrew, The Distribution of Top Incomes in Five Anglo-Saxon Countries Over the Twentieth Century. IZA Discussion Paper No. 4937. Available at SSRN: http://ssrn.com/abstract=1631072

Contact Information

Anthony B. Atkinson (Contact Author)
University of Oxford - Nuffield College ( email )
New Road
Oxford, OX1 1NF
United Kingdom
CESifo (Center for Economic Studies and Ifo Institute)
Poschinger Str. 5
Munich, DE-81679
Germany
Andrew Leigh
Australian National University - Economics Program, Research School of Social Sciences ( email )
HC Coombs Building
Australian National University
Canberra, Australian Capital Territory 0200
Australia
+61261251374 (Phone)
+61261250182 (Fax)
HOME PAGE: http://econrsss.anu.edu.au/~aleigh/
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