This paper introduces a new semi-parametric methodology for the implied volatility surface, which incorporates machine learning algorithms. Given a starting model, a tree boosting algorithm sequentially minimizes the residuals of observed and estimated implied volatility. To overcome the poor...

This paper evaluates the relationship between job satisfaction and measures of health of workers over 50 using the Swiss Household Panel (SHP) and cross-sectional data from the Survey on Health, Ageing and Retirement in Europe (SHARE). Methodologically, it addresses two important design problems...

Property rights are undoubtedly among the most important institutions for economic efficiency. Still, by looking at reality we usually see property rights only imperfectly enforced. In this paper we identify uncertainty faced by an enforcer to be sufficient to explain this observation. This...

The demographic transition in industrialized countries poses challenges to the pension system which is essentially organized according to the pay-as-you-go principle in most countries. This paper aims at analyzing two proposals for pension reform in a theoretical model that endogenously explains...

How can we encourage untapped work potentials, such as young mothers, to participate in the labor market? The present study addresses this issue by providing a direct measure for the relevance of job-related amenities for mothers work decision, namely mothers' marginal willingness to pay (MWP)...

The paper compares the impact of corporate taxation and social insurance on foreign direct investment (FDI) and unemployment. Four main results are derived: (i) the optimal size of the welfare state depends on the degree of risk-aversion and the unemployment rate as a measure of labor income...

Outsourcing of labor intensive activities challenges the welfare state and undermines the protection of low-skilled workers. The stylized facts are that profits are concentrated among the high-skilled, involuntary unemployment is mostly among the low-skilled, and private unemployment insurance...

We present a theory of the economic and demographic transition where adult longevity, child mortality, fertility and the education composition of the population are jointly determined. The model allows for an investigation of the determinants of underdevelopment traps as well as of the mechanism...

In this paper we propose a smooth transition tree model for both the conditional mean and the conditional variance of the short-term interest rate process. Our model incorporates the interpretability of regression trees and the flexibility of smooth transition models to describe regime switches...

We introduce a new model for two-sided markets that generalizes stable marriages as well as assignment games. Our model is a further generalization of the model introduced by Eriksson and Karlander [2]. We prove that the core of our model is always non-empty by providing an algorithm that...