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...

In this paper, we discuss Bayesian inference of unobserved heterogeneity for unemployment duration data in the presence of right and interval-censoring, and non-proportionality. We employ accelerated failure time models with three different distributional assumptions: log-logistic, log-normal,...

We provide an empirical analysis of job mobility with heterogeneous firms and employees. Inference is Bayesian. The results indicate an unobserved heterogeneity at the level of the individuals, and even more influential at the firm level. Furthermore, assortative employers? and employees?...

In this paper, we discuss Bayesian inference of unobserved heterogeneity for unemployment duration data in the presence of right and interval-censoring, and non-proportionality. We employ accelerated failure time models with three different distributional assumptions: log-logistic, log-normal,...

In this article we extend the class of non-negative, asymmetric kernel density estimators and propose Birnbaum-Saunders (BS) and lognormal (LN) kernel density functions. The density functions have bounded support on [0,1). Both BS and LN kernel estimators are free of boundary bias, non-negative,...

A duration analysis is adopted in this study to investigate the determinants of the "interest rate spells" across ten countries (or area) . Both parametric and nonparametric methods are employed for the analysis. It is found that the length of "interest rate spells" is affected by both the rate...

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...

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...

In the aftermath of the financial crisis, this study investigates which underlying determinants cause bank rating transitions. We develop survival analysis models to explain credit transition hazards using macroeconomic factors and the rating history. We find that there exists a significant...