Published online by Cambridge University Press: 04 April 2017
Thomas Piketty’s monumental Capital in the Twenty-First Century has transported us to a higher understanding of the historical evolution of inequality. This essay attempts to inventory the different avenues of research, more or less promising, that scholars might usefully pursue when building on his work. The most important path to follow is the history of inequalities in income that Piketty and his team have flagged up so well, supported by the book’s history of the great shocks of the twentieth century and the political responses that they elicited. Less promising is the book’s emphasis on wealth, capital, and the rate of return. The best predictions of future inequality can be achieved by merging Piketty and his team’s history of those who hold the top 10 percent of income with works dedicated to the history of inequality within the lower 90 percent. It is also necessary to integrate other scholarship that has demonstrated that the sort of democratic system Piketty calls for would have positive effects on growth.
I would like to thank Guido Alfani, Alexander Field, Branko Milanović, Carl Mosk, Richard Sutch, Richard Sylla, Alan Taylor, and Jeffrey Williamson for their helpful comments on earlier drafts. The interpretations and opinions expressed in the article are the sole responsibility of the author.
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10. Piketty, Capital, 499 and 503.
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13. Piketty, Capital, 355.
14. See, for example, Rodrik, Dani, Has Globalization Gone too Far? (Washington, DC: Institute for International Economics, 1997)Google Scholar; Lindert, Peter H., Growing Public: Social Spending and Economic Growth since the Eighteenth Century (Cambridge: Cambridge University Press, 2004), 1:227–95 and 2:82–99Google Scholar, and the earlier studies cited in these chapters. Note that Gabriel Zucman has found that “around 8% of the global financial wealth of households is held in tax havens, three-quarters of which goes unrecorded”: Zucman, “The Missing Wealth of Nations,” Quarterly Journal of Economics (2013): 1321–64. This magnitude raises to several issues, but such practices have not cost any advanced economy a significant share of GDP.
15. Piketty, Capital, 569.
16. Ibid., and throughout the fourth section of the book.
17. See the following works by Acemoglu, and Robinson, : Why Nations Fail; “Income and Democracy,” American Economic Review 98, no. 3 (2008): 808–42 Google Scholar; and their more recent “Democracy Does Cause Growth,” NBER working paper 20004, March 2014, (http:// www.nber.org/papers/w20004), from which the direct quote is taken. For Piketty’s puzzling dismissal of Acemoglu and Robinson, see Capital, 281–82, 392–93, and 402–3.
This is a translation of: Faire fructifier Le capital au XXIe siècle