Fiscal drag in theory and in practice: a European perspective
This paper presents a comprehensive characterization of “fiscal drag”—the increase in tax revenue that occurs when nominal tax bases grow but nominal parameters of progressive tax legislation are not updated accordingly—across 21 European countries using a microsimulationapproach. First, we estimate tax-to-base elasticities, showing that the progressivity built in each country’s personal income tax system induces elasticities around 1.7–2 for many countries, indicating a potential for large fiscal drag effects.