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Monetary Policy and Income Inequality in the United States: The Role of Labor Unions

Kilman, Josefin LU (2020) In Working Papers
Abstract
There is a growing body of literature investigating if and how monetary policy impacts income inequality. Labor unions are generally found to mitigate income inequality and recent literature highlights that changing labor mar- ket structures, such as de-unionization, may be important for monetary pol- icy. This paper tests whether labor unions influence the impact of monetary shocks on income inequality in the United States over the period 1970-2008, and the channels this effect runs through. This is the first paper to identify variations in unionization rates as a moderator of the impact of monetary policy on income inequality. I measure income inequality and unionization at the state level and can therefore exploit that unionization... (More)
There is a growing body of literature investigating if and how monetary policy impacts income inequality. Labor unions are generally found to mitigate income inequality and recent literature highlights that changing labor mar- ket structures, such as de-unionization, may be important for monetary pol- icy. This paper tests whether labor unions influence the impact of monetary shocks on income inequality in the United States over the period 1970-2008, and the channels this effect runs through. This is the first paper to identify variations in unionization rates as a moderator of the impact of monetary policy on income inequality. I measure income inequality and unionization at the state level and can therefore exploit that unionization rates vary both within and across states while monetary shocks are common to all states. The main finding is that contractionary monetary shocks increase income inequal- ity, but the impact is weaker with a higher union density. A one percentage point monetary shock increases the Gini coefficient by 5.4% when union den- sity is 5%, while it increases the Gini coefficient by 1.7% when union density is 15%. I find evidence that both wages and employment are two channels explaining how unions mitigate the monetary policy and income inequality relationship. These findings suggest that unions make adjustments to mone- tary shocks more even across workers, rather than mitigating the aggregate effect of the shocks. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Working paper/Preprint
publication status
published
subject
keywords
Monetary policy, income inequality, labor unions, D31, E24, E52, J51
in
Working Papers
issue
2020:10
pages
52 pages
language
English
LU publication?
yes
id
99681bf7-6d19-4a26-bb4b-bea20ed9f9d5
date added to LUP
2020-06-11 09:11:27
date last changed
2025-04-04 14:59:10
@misc{99681bf7-6d19-4a26-bb4b-bea20ed9f9d5,
  abstract     = {{There is a growing body of literature investigating if and how monetary policy impacts income inequality. Labor unions are generally found to mitigate income inequality and recent literature highlights that changing labor mar- ket structures, such as de-unionization, may be important for monetary pol- icy. This paper tests whether labor unions influence the impact of monetary shocks on income inequality in the United States over the period 1970-2008, and the channels this effect runs through. This is the first paper to identify variations in unionization rates as a moderator of the impact of monetary policy on income inequality. I measure income inequality and unionization at the state level and can therefore exploit that unionization rates vary both within and across states while monetary shocks are common to all states. The main finding is that contractionary monetary shocks increase income inequal- ity, but the impact is weaker with a higher union density. A one percentage point monetary shock increases the Gini coefficient by 5.4% when union den- sity is 5%, while it increases the Gini coefficient by 1.7% when union density is 15%. I find evidence that both wages and employment are two channels explaining how unions mitigate the monetary policy and income inequality relationship. These findings suggest that unions make adjustments to mone- tary shocks more even across workers, rather than mitigating the aggregate effect of the shocks.}},
  author       = {{Kilman, Josefin}},
  keywords     = {{Monetary policy; income inequality; labor unions; D31; E24; E52; J51}},
  language     = {{eng}},
  month        = {{06}},
  note         = {{Working Paper}},
  number       = {{2020:10}},
  series       = {{Working Papers}},
  title        = {{Monetary Policy and Income Inequality in the United States: The Role of Labor Unions}},
  url          = {{https://lup.lub.lu.se/search/files/194581723/WP20_10.pdf}},
  year         = {{2020}},
}