Determinants of the variability of corporate effective tax rates : evidence from Greece
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Μουρίκης, Ιωάννης
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Abstract
In this dissertation, we examine the determinants of the effective tax rate (ETR)
of Greek firms. The corporate effective tax rate plays a worthwhile role in fiscal
and tax policies for companies and analysts. One of the most important issues in
tax field, is to determine effective tax rates. The basic aim of this assignment is to
study the relationship between the effective tax rate and the firm size, profitability, financial leverage, inventory intensity and capital intensity. One ETR measure
is based on income before taxes and another ETR measure is based on operating
cash flows. We select a panel data set of 4213 Greek non-financial firms over the
period 2006-2015. The data are panel. We estimate our regression model by OLS,
fixed effects and random effects. The results show that more profitable and larger
firms have higher effective tax rates and the more leveraged and capital intensive
companies have lower ETRs. The only variable that appears to be statistically
insignificant is inventory intensity. The findings have broad implications for further academic research, as well as for current policy debates about reforming the
corporate tax system.
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Keywords
Effective tax rate, Firm size, Profitability, Leverage, Capital intensity, Corporate tax system