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How quickly does structural reform pay off? An empirical analysis of the short-term effects of unemployment benefit reform


While there is a fairly broad consensus regarding the potential adverse effects of generous unemployment benefit insurance on steady-state employment, the short-term effects of benefit reforms are not well-established. This paper contributes to fill this gap by estimating impulse responses to benefit reform “shocks” identified for a panel of OECD countries. Findings indicate that although it takes time for unemployment benefit reforms to pay off, such reforms do not appear to entail any negative short-run effects. There is however some suggestive evidence that reducing unemployment benefits could have negative short-run effects in “bad times”.

JEL classification

E02, E24, E60, J38, J58, J68

1. Introduction

While the theoretical case for public unemployment insurance is compelling (Blanchard and Tirole2008), the potential adverse effects of high benefit replacement rates on steady-state employment have also long been identified in mainstream labor market theories (e.g. Layard et al.1991; Pissarides2000). With some qualifications1, the theoretical prediction that – all else equal – high benefits should lower the equilibrium employment level is supported by a wide body of empirical literature, be it macroeconometric work based on cross-country time-series panel data (e.g. Bassanini and Duval2009; Nickell et al.2005) or country-specific microeconometric analysis based on difference-in-differences approaches (Card1990; Card and Krueger1994).

However, the typical theoretical analysis provides some insights into the long-term impact of a change in policy settings from a static comparative perspective. Much less explored has been the dynamics of the economy towards its new (post-benefit reform) steady state, leaving largely unanswered the question of whether unemployment benefit (and other labor market) reforms take time to pay-off or might even imply trading long-term gains for short-term pain. Yet in the presence of Keynesian features in the economy, benefit cuts could lower aggregate demand temporarily weaken output and employment, thereby delaying the gains from reform. This could happen for instance if the unemployed have an above-average marginal propensity to consume (possibly because they are credit-constrained), and macroeconomic policy does not fully respond to the associated reduction in aggregate demand (possibly because monetary policy faces a binding zero-bound constraint, see e.g. Eggertsson2010). Beyond its theoretical relevance, the short-term impact of benefit reform also bears major implications for the political feasibility of labor market reforms, as possible transitional losses have often been put forward as an obstacle to their implementation in the policy debate, over and above the usual political economy factors.

Some emerging literature has used small and large-scale dynamic general equilibrium models to explore the dynamic effects of labor market reforms (e.g. Cacciatore et al.2012; Everaert and Schule2008; Gomes et al.2011). One consensual finding is that labor market reforms appear to pay off only gradually, consistent with the presence of frictions in labor markets. While a negative short-term impact is a theoretical possibility – at least under certain conditions, such as if the country considered is a small member of a monetary union – in all such models, whether it materializes in practical simulations depends on the specific design features of the models and their key calibrated parameter values, as well as on how labor markets are represented.

By contrast, to our knowledge no empirical evidence exists concerning the short-term employment effect of unemployment benefit or other labor market reforms. By design, microeconometric analysis – which is otherwise the most robust approach to identify the impact of benefit level or duration cuts on job search and the length of unemployment spells – is poorly suited to assess the economy-wide, general equilibrium effects of reform. Cross-country time-series analysis would therefore seem the most natural choice in this particular case. However, existing studies have relied either on static panel data estimates of a reduced-form unemployment equation, or on dynamic panel specifications in which the short-term dynamics of unemployment is very basic and by construction similar for all types of reforms.

This paper contributes to fill this gap by adopting a different macro panel data approach. Specifically, benefit reform “shocks” are identified for a panel of OECD countries spanning three decades, and turned into reform variables following the methodology outlined by Romer and Romer (2010) to estimate fiscal multipliers at various horizons based on measures of fiscal shocks. The dynamic impact of reforms on employment is then estimated following the simple approach proposed by Jorda (2005), which allows some direct estimation of impulse response functions (IRFs). IRFs are estimated for up to five years after the reform. The main findings are three-fold. First, it takes time for unemployment benefit reform to pay off, with its impact continuing to be felt into the fifth year after the reform. Second, although reforms materialize only gradually, they do not appear to entail any negative short-run effects. Third, we find however some tentative evidence that reducing the generosity of unemployment income support could have negative short-run effects in “bad times”, i.e. when output and employment are particularly depressed.

The remainder of this paper is structured as follows. Section 2 presents the approach taken to identify unemployment benefit reform “shocks” and details the econometric approach used to identify their dynamic effects. Section 3 provides the results from the empirical analysis, and Section 4 checks for the sensitivity of the results to the use of alternative reform identification criteria and econometric specifications. Section 5 concludes.

2. Empirical methodology

2.1. Identification of reform shocks

The identification of reform shocks relies on the OECD’s summary indicator of (average gross) unemployment benefit replacement rates over the first year of the unemployment spell. This indicator is available from the OECD’s Benefits and Wages database for 21 OECD countries over the period 1961–2007. It is derived from benefit model simulations and is computed as an average across two earnings levels (100% and 66% of average wage levels) and three family situations (single, married with dependent spouse and without children, married with dependent spouse and two children).

A decline in this indicator is assumed to signal a “reform”, which depending on the magnitude of the change can be fairly negligible or instead sizeable. In order to identify the effects of reform on aggregate unemployment, we focus on major reforms and identify reform shocks as follows. The standard deviation of the annual change in the benefit replacement rate indicator is calculated over all available observations. A major reform is then assumed to have been undertaken when the change in the policy indicator in a given year exceeds (minus) 2 standard deviations2. Because the criterion set to identify reform shocks is ultimately arbitrary, we perform sensitivity analysis to assess the robustness of the results to alternative thresholds (1.5 and 2.5 standard deviations). Table1 presents for each sample country the reform shocks identified using this methodology, as well as basic summary statistics regarding the reform shocks. Over the sample, benefit reforms appear to have been carried out mainly in English-speaking countries (Australia, Canada, the United Kingdom, Ireland, New Zealand, and the United States) as well as in Nordic countries (Denmark, Norway, and Sweden).

Table 1 The reform shocks: summary statistics and country details

2.2. Econometric approach

Based on the identification of reform shocks, a reform variable is constructed following the methodology outlined by Romer and Romer (2010) to estimate fiscal multipliers at various horizons based on measures of fiscal shocks. The following “reform variable” is constructed by country and year: i) when a reform shock has been identified for a particular country and year, the reform variable takes the value of the change in the associated policy indicator; ii) if no reform shock has been identified, the reform variable takes a zero value. Allowing the reform variable to take the value of the change in the underlying policy indicator results in a continuous variable that allows quantifying the impact of reform shocks, which would not be possible by considering a simple dummy variable instead3. Relying on the constructed benefit reform variable, impulse responses to the reforms are then estimated for the aggregate employment rate. The employment rate is preferred over the unemployment rate in order to account for any offsetting unemployment and labor force participation effects – for instance, any reform-driven decline in unemployment could in principle be concomitant with a decline in labor force participation, resulting in a smaller gain or even a decline in the overall employment rate.

The estimation of IRFs is then based on the simple approach proposed by Jorda (2005). Concretely, the following cross country time-series equation is estimated for each of the five years (k = 1…5) after the occurrence of the reform shock,

E i , t + k E i , t = α k + j = 0 j = 5 β k , j Δ E i , t j + θ k refor m i , t + j = 0 j = 5 λ h , k , j crisi s h , k , t j + γ i , k + γ t , k + ε i , t , k ,

where Ei,t is the employment rate in country i at time t, reform is the benefit reform variable (which, as explained above, is equal to the variation of the underlying policy indicator in case a reform has been identified and zero otherwise), crisis h is a set of four dummies taking value one if the country experienced respectively a bank crisis, a currency crisis, a debt crisis, or a recession, and γ ik and γ tk are respectively country and time fixed effects. Five lags of the crisis dummies are introduced. The financial crisis dummies are taken from Laeven and Valencia (2008). The recession dummy is equal to one in years when real GDP growth is negative and zero otherwise.

The introduction of a dummy variable coding for recessions is justified by the finding that economic crises are major facilitators of the reform process (see e.g. Duval2008). Because economic crises are also likely to affect the dependent variable while being correlated with the probability to observe a reform shock, not controlling for them in the regression would introduce an omitted variable bias. Reverse causality should not be an issue in this set-up provided reforms were not introduced in response to a future expected change in the (un)employment rate. Even if the latter condition were not met, the political economy literature suggests certain reforms would typically be undertaken in response to a future crisis, i.e. to a decline – rather than an increase – in employment. Therefore any associated bias in the estimated coefficients θ k in Equation 1 would be in the direction of finding adverse short-term employment effects of reform. Yet, despite such (highly) hypothetical bias, the estimates presented in Section 3 below show in fact a beneficial short-term employment impact of reform.

The estimated coefficients θ k give the response at horizon k, and together they yield the impulse response function. While the presence of a lagged dependent variable and country fixed effects may in principle bias the estimation of the β s in short samples (Nickell1981), the length of the time dimension mitigates any such concerns since the finite sample bias is of the order of 1/T, where T is the length of the time dimension (Greene2000). Another potential issue is that estimates of coefficients θ k ultimately rely on a limited number of reform shock episodes (see Table1). However, to the extent that these are random, the estimator is consistent and – given our reasonable sample size T = 400 to 500 – should deliver an estimate close to the “true parameter value”. Furthermore, as discussed below, we check for the robustness of coefficient estimates by relaxing the threshold above which a major reform is identified, thereby increasing the number of shocks considered in the estimation. Our results are robust to this test. Robust standard errors are clustered at the country level. Parameter estimates of the autoregressive β s, the fixed effects γ or the crisis dummies are of no particular interest for the analysis4.

The employment impact of benefit reform could potentially be weaker in depressed labor markets. Raising incentives for the unemployed to intensify job search and accept existing offers might be effective at increasing outflows from unemployment when the labor market is tight, but could become less effective when labor demand is particularly weak – which may happen if the monetary authority cannot respond to maintain full employment, as may be the case for a member country of a large monetary union or in a depressed economic situation where the zero-bound constraint on monetary policy becomes binding. In order to explore this possibility, the econometric analysis also assesses whether the impact of benefit reforms varies depending on the cyclical position of the economy. In practice, an indicator of the cyclical conditions is interacted with the reform shock variable as follows:

E i , t + k E i , t = α k + j = 0 j = 5 β kj Δ E i , t j + θ k r e f o r m it + δ k r e f o r m it × c y c l e it + ρ k c y c l e it + j = 0 j = 5 λ h , k , j c r i s i s h , k , t j + γ ik + γ tk + ε itk .

where cycle it is the cyclical position of the economy considered just prior to the introduction of the reform and is measured by the OECD’s estimate of the unemployment gap. Because the latter is ultimately an unobserved variable subject to some degree of uncertainty, we regard this part of the analysis as more suggestive than fully conclusive.

3. Estimation results

The estimation results are shown in Table2. The employment rate impact of a reduction in the initial unemployment benefit replacement rate appears to materialize only gradually. The estimated effect becomes statistically significant only in the third year, and is still increasing into the fifth year. For example, a reduction in the initial unemployment benefit replacement rate of around 8 percentage points (corresponding to the median reform in the estimation sample) would translate into a 0.5 percentage point increase in the employment rate after three years and into an almost 1 percentage point increase after five years (Figure1). The latter effect is comparable in magnitude to the steady-state impact estimated in Bassanini and Duval (2006), suggesting that it may take as much as five years on average for the full gains from benefit reform to materialize.

Table 2 Baseline estimation results
Figure 1

Change in aggregate employment following a reduction in the initial unemployment benefit replacement rate. Note: ** represents statistical significance at the 5% level. The simulation is based on the median-sized reform observed in the estimation sample.

The generosity of unemployment insurance depends on both replacement rates and the duration of benefits. We hence extend the previous analysis by controlling the regression for the impact of reforms reducing the duration of unemployment benefits (Table 3). Following the approach in Nickell et al. (2005) and Bassanini and Duval (2009), the underlying benefit duration variable is computed indirectly as the ratio of (OECD measures of) average replacement rates over a five-year unemployment spell to first-year replacement rates5. Bearing in mind that only six reform shocks are identified over the sample, results are qualitatively consistent with those reported above but the impact of benefit duration reforms seems to take more time to materialize, up to five years.

Table 3 The impact of benefit duration reforms

The empirical analysis suggests that the short-term impact of unemployment benefit reforms varies depending on the business cycle position (Table 4, Panel A). Evaluating the size of these interactions requires calculating marginal effects of reforms for different levels of economic activity (and their corresponding standard errors). Table4, Panel B reports synthetic results on the employment impact of the unemployment benefit reform calculated at the minimum, median and maximum values of the unemployment gap. While the baseline analysis suggests that on average positive effects of this reform materialise quite rapidly, interacting the reform shock variable with the unemployment gap suggests that short-term gains are stronger during “good” times, and weaker – and in some cases even negative – during “bad” times. This finding is consistent with some micro-econometric evidence (Bover et al.2002; Schmieder et al.2012) which points to smaller disincentive effects from unemployment benefits – and therefore to smaller potential job search intensity and employment gains from benefit reform – in weak economic conditions. Taken at face value, the estimates imply that a median reduction in the initial unemployment benefit replacement rate would bring about a 0.5 percentage point employment gain after three years when the unemployment gap is at its median value of close to zero, but the same reform would not have any statistically significant effect for lower values of the initial unemployment gap and even bring significant employment losses in very depressed labor markets (Figure2)6.

Table 4 The influence of economic conditions
Figure 2

Change in aggregate employment following a reduction in the initial unemployment benefit replacement rate: the influence of economic conditions. Note: The lower line corresponds to the impact of the reform during “bad” times, while the upper line represents the impact during “good” times, corresponding to the minimum and maximum levels of the unemployment gap, respectively, as observed across the sample (i.e. across all countries and time). The central broken line represents the impact of the reform when the unemployment gap equals its median value. The pre-reform unemployment gap is calculated as the difference between the structural unemployment rate (i.e. the NAIRU, or non-accelerating inflation rate of unemployment – defined as the level of unemployment compatible with stable inflation) and the observed level of unemployment in the estimation sample.

4. Sensitivity analysis

In order to assess the sensitivity of the baseline results, we perform the three following robustness checks:

  •  The use of alternative thresholds beyond which the change in a benefit replacement rate indicator is identified as a reform shock. In the baseline approach, a reform shock is identified when the benefit replacement rate indicator varies by more than two standard deviations of the annual variation calculated over all available observations. Here we test for the robustness of the baseline results when reducing or increasing the occurrence of reform shocks, i.e. by raising the stringency criterion used to identify them to 2.5 standard deviations or reducing it to 1.5 standard deviations. This comes across as considering “smaller” and “larger” reforms than in the baseline, respectively.

  •  The introduction of “reverse” reforms, measured as large changes in the benefit replacement rate indicator in the opposite direction, as additional control variables7. The results from the baseline approach are based on regressions that ignore “reverse” reforms, which can be defined as a large increase in the benefit replacement rate. Insofar as large increases in benefit replacement rates reduce employment rates, omitting them from the regressions may lead to an overestimation of the positive effects of reforms. Instead of disentangling the effects of positive and negative reform shocks by including a new variable for reverse shocks, an alternative strategy is to specify a new reform shock variable including simultaneously positive and negative shocks.

  •  The exclusion of the country fixed effects. Country fixed effects are aimed at controlling for country-specific trends in the employment rate, since the latter enters the equation in difference. Yet this empirical model might be incorrectly specified if unobserved heterogeneity between countries applies to the level rather than the growth rate of the employment rate, in which case a model without fixed effects would better capture the underlying dynamics. This is unlikely to be the case here since the country fixed effects are statistically significant in the baseline regressions. Nevertheless, as a robustness test, regressions are run without country fixed effects.

The baseline results appear to be robust to these robustness checks (Table 5).

Table 5 Sensitivity analysis

Estimates obtained by reducing or alternatively, by increasing the number of reform shocks (shocks identified respectively with a threshold of 2.5 standard deviations and with a threshold of 1.5 standard deviations) are qualitatively similar to those obtained in the baseline (Panels A and B), although coefficients get more significant when the number of shocks considered is larger. Introducing “reverse” reforms in the regression (Panel C) barely modifies the estimates, suggesting that the effects of the unemployment benefit reform identified in the baseline approach are not overestimated due to the omission of increases in benefit replacement rates that may dampen labor market performance. Results from an alternative approach based on a single reform shock variable including positive and negative shocks are generally less robust than those obtained when allowing the coefficient to differ between opposite-signed reforms (Table 5 Panel D). This suggests that the effects of policy changes are not symmetrical. Finally, results reported in Table5, Panel E excluding country fixed effects are more significant than those obtained with country fixed effects, with positive effects of a decrease in the benefit replacement rates that may materialize from the first year.

5. Conclusion

Based on some identification of reform “shocks” and the estimation of associated impulse response functions, this paper has found robust evidence that unemployment benefit reforms deliver employment gains only gradually, typically over a period of several years. This finding is consistent with the presence of frictions in labor markets and should therefore not come as a surprise. While benefit reforms are not found to entail any transitional losses in general, one exception seems to be when they are implemented in severely depressed labor markets. This tentative finding is of some relevance for the ongoing experience of euro area countries that are seeking to revise job and output growth by means of structural reform, including of their labor market institutions. It also points to some trade-off between short-term economic and political economy considerations: taken at face value the results might suggest postponing benefit reforms until economic slack is removed, but at the same time past experiences and political economy studies indicate that hard-to-implement reforms are easier to push through in crisis times.


1 The existence of interactions between labor market institutions implies in particular that the adverse employment effects of high and long-lasting benefits can be mitigated and even possibly be fully offset by well-designed active labor market policies, along the lines of the Danish “flexicurity” model. For empirical evidence on such effect and on interactions between labor and product market regulations more broadly, see Bassanini and Duval (2009).

2 A priori, one potential concern could be that some large unemployment benefit reforms may have been incremental in nature, and would therefore be missed by the criterion applied here. This is a feature which the empirical approach, which focuses on reform “shocks”, cannot fully capture. However, because any large but incremental reforms will be coded as non-reforms, the empirical results can only be “biased” against finding significant effects.

3 While our construction of the reform shock variables is inspired by Romer and Romer’s, it is worth underlying the differences between the two approaches. Romer and Romer (2010) use a vast narrative record describing the motivation of tax changes from which the authors identify reforms that are not directly related with other developments affecting output. In contrast to the narrative approach used by Romer and Romer, our identification strategy relies on the use of a threshold approach to identify major changes in the institutional variable. The impacts of these major shocks are then estimated against the scenario of either no reform or gradual reform.

4 An alternative to this econometric approach would have been to estimate one single auto regressive distributed lag (ARDL) specification and to derive IRFs from the estimated coefficients. This approach was initially proposed by Romer and Romer (1989,2010), and it has been recently applied by Cerra and Saxena (2008) to assess the impact of financial crises on GDP growth. However, because IRFs are calculated recursively in this approach, they have been criticized for being sensitive to small specification errors that always exist in practice (Teulings and Zubanov2010). Specifically, IRFs derived using an ARDL specification tend to be sensitive to the choice of the number of lags, and as a result can be unstable.

5 More precisely, this measure captures the extent to which unemployment benefits decline throughout the unemployment spell. In practice, it appears to vary between 0.2 and 1, where 1 indicates a situation where unemployment benefits do not decline during the period spent in unemployment.

6 The impact of the reform is found to be statistically insignificant for values of the unemployment gap lower than −1.4 and significantly negative for values of the unemployment gap lower than −5.2 (the minimum level of the unemployment gap is equal to −6.8 in the sample).

7 Following the Romer and Romer (2010) approach used above, the associated variable is equal to this large change when it is observed and zero otherwise.


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We would like to thank Aleksandra Zdzienicka for her collaboration to this work. We thank one anonymous referee, and the editor, Juan Francisco Jimeno. All remaining errors are ours. ‘We would like to thank Aleksandra Zdzienicka for her collaboration to this work as well as Jorgen Elmeskov and Jean-Luc Schneider for providing useful comments during all the process. The authors are also grateful to one anonymous referee, and the editor, Juan Francisco Jimeno for their suggestions. Thanks also to participants to OECD Economics Department seminars, European Central Bank workshop and Tallinn University seminar. All remaining errors are ours.’

Responsible editor: Juan Francisco Jimeno

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Correspondence to Lilas Demmou.

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Bouis, R., Causa, O., Demmou, L. et al. How quickly does structural reform pay off? An empirical analysis of the short-term effects of unemployment benefit reform. IZA J Labor Policy 1, 12 (2012).

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  • Institutions
  • Reforms
  • Labor market
  • Macroeconomic conditions
  • Impulse response function