Progressive Taxation and Social Welfare: Quantifying the Effects of the “German Tax-Reform 2000”

Jung Benjamin () and Walter Timo ()
Additional contact information
Jung Benjamin: 26558 University of Hohenheim , 70593 Stuttgart, Germany
Walter Timo: 26558 University of Hohenheim , 70593 Stuttgart, Germany

German Economic Review, 2024, vol. 25, issue 3, 209-239

Abstract: The German “Tax-Reform 2000” involved a strong reduction in the progressivity of labor income taxation. It led to a rise in overall labor income, but also increased income inequality. Utilizing data from the German Socio-Economic Panel (SOEP. 2016. Socio-Economic Panel (SOEP), Data for Years 1984–2016, Version 33) for the years 1998–2007, we employ a general equilibrium framework à la Antràs et al. (Antràs, P., A. De Gortari, and O. Itskhoki. 2017. “Globalization, Inequality and Welfare.” Journal of International Economics 108: 387–412) characterized by heterogeneous individuals. The model imposes a constant rate of tax progressivity and allows for a theory-consistent decomposition of social welfare that highlights the equity-efficiency trade-off, namely into (i) the fundamental social welfare level that would arise in a Kaldor-Hicks economy with lump-sum transfers, (ii) a correction term that accounts for the social cost of inequality à la Atkinson (Atkinson, A. B. 1970. “On the Measurement of Inequality.” Journal of Economic Theory 2 (3): 244–63) or Sen (Sen, A. 1970. Collective Choice and Social Welfare. Harvard University Press), and (iii) a correction term for the social cost of distortionary taxation. Our estimations show that the German tax system can be well approximated by the imposed tax schedule and that the reform implied a fall in the degree of tax progressivity. Under the baseline calibration, the numerical analysis yields the following results: First, the main driver of growth in social welfare from 1998 to 2007 was fundamental social welfare. Second, the counterfactual analysis shows that the reform resulted in an annual average income growth of 0.62 % and an increase in income inequality of 0.32 %, indicating an only modest increase in social welfare of 0.07 %. Third, the actual tax progression converged to its social welfare maximizing level.

Keywords: Social welfare functions; tax-reform; optimal taxation; income distribution; inequality; policy evaluation (search for similar items in EconPapers)
JEL-codes: D31 D63 H21 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://doi.org/10.1515/ger-2023-0100 (text/html)
For access to full text, subscription to the journal or payment for the individual article is required.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bpj:germec:v:25:y:2024:i:3:p:209-239:n:1002

Ordering information: This journal article can be ordered from
https://www.degruyter.com/journal/key/ger/html

DOI: 10.1515/ger-2023-0100

Access Statistics for this article

German Economic Review is currently edited by Peter Egger, Almut Balleer, Jesus Crespo-Cuaresma, Mario Larch, Aderonke Osikominu and Georg Wamser

More articles in German Economic Review from De Gruyter
Bibliographic data for series maintained by Peter Golla ().