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Non-uniformity of job-matching in a transition economy : a nonparametric analysis for the Czech Republic

Profit, Stefan; Sperlich, Stefan - 1998

We consider problems in modelling job-matching in the Czech Republic during the transition to a market economy. Special … interest is devoted to functional form considerations and the analysis of returns to scale of the matching function. This … explorative study aims to shed some light into the black-box of the matching technology by applying nonparametric estimation …

Persistent link: https://www.econbiz.de/10009574874

Nonparametric estimation and testing of interaction in additive models

Sperlich, Stefan; Tjostheim, Dag; Yang, Lijian - 1998

We consider an additive model with second order interaction terms. It is shown how the components of this model can be estimated using marginal integration, and the asymptotic distribution of the estimators is derived. Moreover, two test statistics for testing the presence of interactions are...

Persistent link: https://www.econbiz.de/10009574875

Estimation of derivates for additive separable models

Severance-Lossin, E.; Sperlich, Stefan - 1997

Additive regression models have a long history in nonparametric regression. It is well known that these models can be estimated at the one dimensional rate. Until recently, however, these models have been estimated by a backfitting procedure. Although the procedure converges quickly, its...

Persistent link: https://www.econbiz.de/10009657128