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In 2005 the German government implemented the so-called Hartz IV reform, which amounted to a complete overhaul of the German unemployment insurance system and resulted in a significant reduction in unemployment benefits for the long-term unemployed. In this paper, we use an incomplete-market model with search unemployment to evaluate the macro-economic and welfare effects of the Hartz IV reform. We calibrate the model economy to German data before the reform and then use the calibrated model economy to simulate the effects of Hartz IV. In our baseline calibration, we find that the reform has reduced the long-run (noncyclical) unemployment rate in Germany by 1.4 percentage points. We also find that the welfare of employed households increases, but the welfare of unemployed households decreases even with moderate degree of risk aversion.

In 2003–05, Germany undertook extensive labor market reforms which were followed by a large and persistent decline in unemployment. Key elements of the reforms were a drastic cut in benefits for the long-term unemployed and tighter job search and acceptance obligations. Using a large confidential data set from the German social security administration, we find that the reforms were associated with a fall in the earnings of workers returning to work from short-term unemployment relative to workers in long-term employment of about 10 percent. We interpret this as evidence that the reforms strengthened incentives to return to work but, in doing so, they adversely affected post re-entry earnings.

"Having faced high unemployment rates for more than a decade, the German government implemented a comprehensive set of labour market reforms during the period 2003-2005. This paper describes the economic and institutional context of the German labour market before and after these so-called Hartz reforms. Focussing on active policy measures, we delineate the rationale for reform and its main principles. As results of programme evaluation studies post-reform have become available just now, we give a first assessment of the effectiveness of key elements of German ALMP before and after the Hartz reforms. The evidence indicates that the re-organisation of public employment services was mainly successful, with the exception of the outsourcing of services. Re-designing training programmes seems to have improved their effectiveness, while job creation schemes continue to be detrimental for participants' employment prospects. Wage subsidies and start-up subsidies show significantly positive effects. On balance, therefore, the reform seems to be moving the German labour market in the right direction"--Forschungsinstitut zur Zukunft der Arbeit web site.

Measures of Active Labor Market Policy - such as training, wage subsidies, public employment measures, and job search assistance - are widely used in European countries to combat unemployment. This study provides novel insight on this important policy issue by discussing the role of the European Commission's Employment Strategy, reviewing the experiences made in European states, and giving the first ever quantitative assessment of the existing cross-country evidence.

"For many decades, American liberals have pointed to Europe's social welfare systems as a model for the US. As Senator Bernie Sanders famously said: "I think we should look to countries like Denmark, like Sweden and Norway, and learn what they have accomplished for their working people" (Moody, 2016)"--