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abolished the dependence of unemployment insurance benefits on the elapsed unemployment duration and simultaneously introduced … additional active labor market policy measures. The estimated effect of the reform on the survival function of the duration of … unemployment duration is positive and significant. Neglecting selectivity leads to an underestimation of the effects in absolute …
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Deciding whether a time series that appears nonstationary is in fact fractionally integrated or subject to structural change is a diffcult task. However, various tests have recently been introduced for distinguishing long memory from level shifts and nonlinearity. In this paper, three testing...
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This paper proposes several tests of restricted specification in nonparametric instrumental regression. Based on series estimators, test statistics are established that allow for tests of the general model against a parametric or nonparametric specification as well as a test of exogeneity of the...
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