http://eprints.lse.ac.uk/107919/1/H..._KL9XlBrhQJvvZ3I3YgfT-lv5LBR9f1xA-S_3X9rNLlwY
Academic research from the London School recently released concludes causally that tax cuts for the wealthy raise their income but do not increase GDP or otherwise improve economic growth. I realize for many of you it is simply a belief system and no amount of academic work or data is going to change your mind. But, it does exist.
Quotes:
We find that major reforms reducing taxes on the rich lead to higher income inequality as measured by the top 1% share of pre-tax national income. The effect remains stable in the medium term. In contrast, such reforms do not have any significant effect on economic growth and unemployment.
.....
In this paper, we use data from 18 OECD countries covering the last fifty years to investigate the effects of major tax cuts for the rich on income inequality, economic growth, and unemployment. We contribute to the existing empirical literature in two ways: first, we use a newly constructed, comprehensive measure of taxes on the rich to identify years in which major tax cuts occurred across a wide range of advanced economies; and second, we move beyond correlational evidence on the economic
effects of taxing the rich by applying a novel matching method that allows for the estimation of causal effects from time-series cross-sectional data.
.......
Our results show that, for both matching methods, major tax cuts for the rich increase the top 1% share of pre-tax national income in the years following the reform ( + 1 to + 5). The magnitude of the effect is sizeable; on average, each major reform leads to a rise in top 1% share of pre-tax national income of 0.8 percentage points. The results also show that economic performance, as measured by real GDP per capita and the unemployment rate, is not significantly affected by major tax cuts for the rich. The estimated effects for these variables are statistically indistinguishable from zero, and this finding holds in both the short and medium run.
.......
Our findings align closely with the existing correlational evidence showing that tax cuts for the rich are associated with rising top income shares (Atkinson and Leigh, 2013; Huber et al., 2019; Piketty et al., 2014; Roine et al., 2009; Volscho and Kelly, 2012). We make an important contribution to this literature, however, as our empirical strategy allows for the estimation of causal effects.
Academic research from the London School recently released concludes causally that tax cuts for the wealthy raise their income but do not increase GDP or otherwise improve economic growth. I realize for many of you it is simply a belief system and no amount of academic work or data is going to change your mind. But, it does exist.
Quotes:
We find that major reforms reducing taxes on the rich lead to higher income inequality as measured by the top 1% share of pre-tax national income. The effect remains stable in the medium term. In contrast, such reforms do not have any significant effect on economic growth and unemployment.
.....
In this paper, we use data from 18 OECD countries covering the last fifty years to investigate the effects of major tax cuts for the rich on income inequality, economic growth, and unemployment. We contribute to the existing empirical literature in two ways: first, we use a newly constructed, comprehensive measure of taxes on the rich to identify years in which major tax cuts occurred across a wide range of advanced economies; and second, we move beyond correlational evidence on the economic
effects of taxing the rich by applying a novel matching method that allows for the estimation of causal effects from time-series cross-sectional data.
.......
Our results show that, for both matching methods, major tax cuts for the rich increase the top 1% share of pre-tax national income in the years following the reform ( + 1 to + 5). The magnitude of the effect is sizeable; on average, each major reform leads to a rise in top 1% share of pre-tax national income of 0.8 percentage points. The results also show that economic performance, as measured by real GDP per capita and the unemployment rate, is not significantly affected by major tax cuts for the rich. The estimated effects for these variables are statistically indistinguishable from zero, and this finding holds in both the short and medium run.
.......
Our findings align closely with the existing correlational evidence showing that tax cuts for the rich are associated with rising top income shares (Atkinson and Leigh, 2013; Huber et al., 2019; Piketty et al., 2014; Roine et al., 2009; Volscho and Kelly, 2012). We make an important contribution to this literature, however, as our empirical strategy allows for the estimation of causal effects.
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