Frontmatter -- CONTENTS -- FIGURES -- TABLES -- PREFACE -- ACKNOWLEDGMENTS -- ORGANIZATION OF THIS BOOK -- Part I. Preliminaries -- Chapter 1. Questions about Questions -- Chapter 2. The Experimental Ideal -- Part II. The Core -- Chapter 3. Making Regression Make Sense -- Chapter 4. Instrumental...

The dissertation consists of three essays. The main focus is set on semiparametric regression modeling, which embodies the strength of parametric and nonparametric regression models in terms of flexibility, dimensionality and interpretability. The first essay is “Some Recent Advances in...

We propose a nonparametric test that distinguishes “depressions” and “booms” from ordinary recessions and expansions. Depressions and booms are defined as coming from another underlying process than recessions and expansions. We find four depressions and booms in the NBER business cycle...

This paper considers Bayesian nonparametric estimation of conditional densities by countable mixtures of location-scale densities with covariate dependent mixing probabilities. The mixing probabilities are modeled in two ways. First, we consider finite covariate dependent mixture models, in...