19.02.2026 • 4/2026
Eine Abschaffung von Minijobs würde die Nettoeinkommen der Betroffenen reduzieren
Aktuell wird diskutiert, Minijobs schrittweise in reguläre sozialversicherungspflichtige Beschäftigungsverhältnisse zu überführen. Nach Berechnungen des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH) würde dies bei etwa vier Millionen betroffenen Minijobbern Zusatzeinnahmen der Sozialversicherungen in Höhe von 4,5 Milliarden Euro im Jahr 2026 zulasten der Nettoeinkommen der Betroffenen bedeuten.
Oliver Holtemöller
Birgit Schultz
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Road to Net Zero: Carbon Policy and Redistributional Dynamics in the Green Transition
Alessandro Sardone
IWH Discussion Papers,
Nr. 16,
2025
Abstract
This paper examines the macroeconomic and distributional effects of the European Union’s transition to Net Zero emissions through a gradually increasing carbon tax. I develop a New Keynesian Environmental DSGE model with two household types and distinct energy and non-energy sectors. Five alternative uses of carbon tax revenues are considered: equal transfers to households, targeted transfers to Hand-to-Mouth households, subsidies to green energy firms, and reductions in labor and capital income taxes. In the absence of technological progress, the carbon tax policy induces a persistent increase in energy prices and a reduction in GDP, investment, and consumption. Headline inflation falls below zero in the medium run, reflecting weaker aggregate demand. Distributional outcomes vary significantly depending on the implemented revenue recycling scheme: targeted transfers are the most progressive but entail larger macroeconomic costs, while subsidies and tax cuts mitigate output and investment losses but are less effective in narrowing the consumption gap. A limited foresight scenario, in which agents learn about policy targets sequentially, generates more volatile adjustment paths and temporary inflationary spikes around announcements, but long-run outcomes remain close to the baseline.
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Alumni
IWH-Alumni Das IWH pflegt den Kontakt zu seinen ehemaligen Mitarbeiterinnen und Mitarbeitern weltweit. Wir beziehen unsere Alumni in unsere Arbeit ein und unterrichten diese…
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Forecast Dispersion, Dissenting Votes, and Monetary Policy Preferences of FOMC Members: The Role of Individual Career Characteristics and Political Aspects
Stefan Eichler, Tom Lähner
Public Choice,
Vol. 160 (3),
2014
Abstract
Using data from 1992 to 2001, we study the impact of members’ economic forecasts on the probability of casting dissenting votes in the Federal Open Market Committee (FOMC). Employing standard ordered probit techniques, we find that higher individual inflation and real GDP growth forecasts (relative to the committee’s median) significantly increase the probability of dissenting in favor of tighter monetary policy, whereas higher individual unemployment rate forecasts significantly decrease it. Using interaction models, we find that FOMC members with longer careers in government, industry, academia, non-governmental organizations (NGOs), or on the staff of the Board of Governors are more focused on output stabilization, while FOMC members with longer careers in the financial sector or on the staffs of regional Federal Reserve Banks are more focused on inflation stabilization. We also find evidence that politics matters, with Republican appointees being much more focused on inflation stabilization than Democratic appointees. Moreover, during the entire Clinton administration ‘natural’ monetary policy preferences of Bank presidents and Board members for inflation and output stabilization were more pronounced than under periods covering the administrations of both George H.W. Bush and George W. Bush, respectively.
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Effects of Entrepreneurship Education at Universities
S. Laspita, H. Patzelt, Viktor Slavtchev
Jena Economic Research Papers,
Nr. 25,
2012
Abstract
This study analyzes the impact of entrepreneurship education at universities on the intentions of students to become entrepreneurs or self-employed in the short-term (immediately after graduation) and in the long-term (five years after graduation). A difference-in-differences approach is applied that relates changes in entrepreneurial intentions to changes in the attendance of entrepreneurship classes in the same period. To account for a potential bias due to self-selection into entrepreneurship classes, only individuals having no prior entrepreneurial intentions are analyzed. Our results indicate a stimulating effect of entrepreneurship education on students’ intentions to become entrepreneurs or self-employed in the long-term but a discouraging effect on their intentions in the short-term. These results support the conjecture that entrepreneurship education provides more realistic perspectives on what it takes to be an entrepreneur, resulting in ‘sorting’. Overall, the results indicate that entrepreneurship education may improve the quality of labor market matches, the allocation of resources and talent, and increase social welfare. Not distinguishing between short- and long-term intentions may lead to misleading conclusions regarding the economic and social impact of entrepreneurship education.
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Wirkung kommunaler Investitionen in die Tourismusinfrastruktur am Beispiel Sachsens
Albrecht Kauffmann
Jahrbuch für Regionalwissenschaft,
Vol. 31 (1),
2011
Abstract
Nach 1990 erfolgten in allen Neuen Ländern der Bundesrepublik Deutschland massive Investitionen in die touristische Infrastruktur. Dabei wurden sowohl das Ziel der Erhaltung bzw. Wiedererlangung der Wettbewerbsfähigkeit traditioneller Tourismusgebiete als auch die Unterstützung eines dienstleistungsorientierten Strukturwandels in de-industrialisierten Regionen verfolgt. Ein Großteil dieser Investitionen wurde aus Mitteln des Programms der Gemeinschaftsaufgabe zur Verbesserung der regionalen Wirtschaftsstruktur, insbesondere der kommunalen wirtschaftsnahen Infrastruktur (GA-Infra) gefördert. Der vorliegende Beitrag untersucht die Wirkung derart geförderter Investitionen in die touristische Infrastruktur auf die Beschäftigung im Gastgewerbe in Sachsen auf der Ebene der Kommunen. Dabei zeigt sich, dass für bestimmte Investitionsarten für den Zeitraum von 2000 bis 2007 tatsächlich eine positive Korrelation mit der Entwicklung im Gastgewerbe bestand. Diese ist jedoch an bestimmte Voraussetzungen gebunden, z. B. das Vorhandensein komplementärer Faktoren und einer bereits bestehenden touristischen Tradition.
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Monopolistic Competition and Costs in the Health Care Sector
Ingmar Kumpmann
IWH Discussion Papers,
Nr. 17,
2009
Abstract
Competition among health insurers is widely considered to be a means of enhancing efficiency and containing costs in the health care system. In this paper, it is argued that this could be unsuccessful since health care providers hold a strong position on the market for health care services. Physicians exert a type of monopolistic power which can be described by Chamberlin’s model of monopolistic competition. If many health insurers compete with one another, they cannot counterbalance the strong bargaining position of the physicians. Thus, health care expenditure is higher, financing either extra profits for physicians or a higher number of them. In addition, health insurers do not have an incentive to contract selectively with health care providers as long as there are no price differences between physicians. A monopolistic health insurer is able to counterbalance the strong position of physicians and to achieve lower costs.
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Banking Integration, Bank Stability, and Regulation: Introduction to a Special Issue of the International Journal of Central Banking
Reint E. Gropp, H. Shin
International Journal of Central Banking,
Vol. 5 (1),
2009
Abstract
The link between banking integration and financial stability has taken center stage in the wake of the current financial crisis. To what extent is the banking system in Europe integrated? What role has the introduction of the common currency played in this context? Are integrated banking markets more vulnerable to contagion and financial instability? Does the fragmented regulatory framework in Europe pose special problems in resolving bank failures? What policy reforms may become necessary? These questions are of considerable policy interest as evidenced by the extensive discussions surrounding the design and implementation of a new regulatory regime and by the increasing attention coming from academia.
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Evaluation of Further Training Programmes with an Optimal Matching Algorithm
Eva Reinowski, Birgit Schultz, Jürgen Wiemers
IWH Discussion Papers,
Nr. 188,
2004
Abstract
This study evaluates the effects of further training on the individual unemployment duration of different groups of persons representing individual characteristics and some aspects of the economic environment. The Micro Census Saxony enables us to include additional information about a person's employment history to eliminate the bias resulting from unobservable characteristics and to avoid Ashenfelter's Dip. In order to solve the sample selection problem we employ an optimal full matching assignment, the Hungarian algorithm. The impact of participation in further training is evaluated by comparing the unemployment duration between participants and non-participants using the Kaplan-Meier-estimator. Overall, we find empirical evidence that participation in further training programmes results in even longer unemployment duration.
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IWH-Bauumfrage: Baugeschäft im August 1997 auf bisherigem Jahreshoch - im Vorjahresvergleich bleiben sie aber äußerst schwach
Brigitte Loose
Wirtschaft im Wandel,
Nr. 13,
1997
Abstract
Im August erreichte die Geschäftslage im ostdeutschen Baugewerbe laut Umfrage des IWH ihr bisheriges Jahreshoch. Der Indikator löste sich aus dem Minusbereich, da die Mehrheit der Unternehmen das laufende Baugeschäft als gut oder eher gut bezeichnet. Die Stimmung bleibt aber in allen Sparten deutlich unter dem Vorjahresniveau und bestätigt die insgesamt rückläufige Entwicklung der Nachfrage auf dem ostdeutschen Baumarkt. Für 43 vH der befragten Unternehmen läuft das derzeitige Baugeschäft schlecht oder eher schlecht. Im Vorjahr traf dies für 30 vH der Unternehmen zu.
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