This aims to provide a perspective on the ideal tax system, using insights from optimal-tax theory supplemented with empirical evidence. These insights are applied to actual policy questions regarding the progressiveness of the labor-income tax, in-work tax credits, the design of the...

The German 2008 corporate tax reform followed the distinct and internationally prevalent pattern of tax-rate cut cum base broadening. Based on a new corporate microsimulation model, ZEW TaxCoMM, we assess the heterogeneous effects of the tax reform on firms, varying according to some of the...

Do workers gain from lower business taxes, and why? We estimate how a large corporate income tax credit in France is passed on to wages and explore the firm- and employee-level underlying mechanisms. The amount of tax credit firms get depends on their payroll share of workers paid less than a...

China is perceived to rely on subsidizing firms in targeted industries to improve their performance and stay competitive. We implement an approach that allows for the joint estimation of direct and indirect effects of subsidies on subsidized and non-subsidized firms. We find that firms that...

We study how profit taxation affects plants' R&D spending and innovation activities. Relying on geocoded survey panel data which approximately covers the universe of R&D-active plants in Germany, we exploit around 7,300 changes in the municipal business tax rate over the period 1987-2013 for...

Enacted March 27, 2020, the Paycheck Protection Program (PPP) was the most ambitious and creative fiscal policy response to the Pandemic Recession in the United States. PPP offers forgivable loans - essentially grants - to businesses with 500 or fewer employees that meet certain requirements. In...

Suárez Serrato and Zidar (2016) identify state corporate tax incidence in a spatial equilibrium model with imperfectly mobile firms. Their identification argument rests on comparative-statics omitting a channel implied by their model: the link between common determinants of a location's...

We investigate competition for FDI within a region when a foreign multinational firm can profitably exploit differences in statutory corporate tax rates by shifting taxable profits to lower-tax jurisdictions. In such a framework we show that targeted tax competition may lead to higher welfare...

This essay critically revisits the roles and influences of tax havens in the world economy. It combines various messages of available studies in one scheme, and uses various data sources to document regularities regarding multinational firms, financial assets, and other relevant information for...

This paper analyzes effects of an equalization tax on the decisions of a multinational company. An equalization tax is an extra corporation tax on dividend distributions to ensure that the underlying profit of a dividend has borne a tax in the corporate sector equal to the imputation credit...