We extend the asymmetric, stochastic, volatility model by modeling the return-volatility distribution nonparametrically. The novelty is modeling this distribution with an infinite mixture of Normals, where the mixture unknowns have a Dirichlet process prior. Cumulative Bayes factors show our...

We evaluate the effect of active labour market programs on the duration of unemployment in a reward or punish system. In Switzerland, unemployment benefits are conditional upon program attendance after 7 months of unemployment duration. In the evaluation we allow for selectivity affecting the...

This paper presents a new estimator for the mixed proportional hazard model that allows for a nonparametric baseline hazard and time-varying regressors. In particular, this paper allows for discrete measurement of the durations as happens often in practice. The integrated baseline hazard and all...

While many previous studies on temporary work have found disadvantages for temporary workers compared to workers with a permanent contract, this study makes the comparison to the alternative of unemployment. Applying a dynamic propensity-score matching approach based on British, German, and...

The papers published in this issue of the Rivista Internazionale di Scienze Sociali have been selected from those contributions presented at the workshop on ‘‘Employment opportunities and unemployment over the economic downturn’’ held on 18th May 2012 at the Universita` Cattolica del...

We re-analyze the effects of a Danish active labor market programme social experiment, which included a range of sub-treatments, including meetings with caseworkers, job search assistance courses, and activation programmes. We use newly developed non-parametric methods to examine how the effects...

We examine the impacts of time-limited unemployment insurance (UI) and active labor market programs (ALMP) on the duration and outcome of job search in Norway. We use a comprehensive simultaneous equations model accounting for i) the duration of unemployment spells; ii) their outcomes, iii)...

This note shows that the asymptotic variance of Chen’s [Chen, S., 2002. Rank estimation of transformation models. Econometrica 70 (4) 1683–1697] two-step estimator of the link function in a linear transformation model depends on the first-step estimator of the index coefficients.

This paper implements a method to identify and estimate treatment effects in a dynamic setting where treatments may occur at any point in time. By relating the standard matching approach to the timing-of-events approach, it demonstrates that effects of the treatment on the treated at a given...