Diese Arbeit umfasst eine Darstellung des Grossman-Modells und der Akkumulation von Gesundheitskapital. Es werden ältere empirische Untersuchungen (Wagstaff) vorgestellt und aus methodischer Sicht kritisiert, verbesserte ökonometrische Methoden vorgeschlagen und deren Anwendung in aktuellen...

I develop an empirical model that estimates a firm-specific accrual noise ratio (ANR), an operational and statistically grounded measure of accrual reliability, and test the measure's construct validity. The model allows accrual reliability to vary across firms, which is particularly important...

In the ¯rst of the essays, I reassess the relationship between premarital cohab-itation and marital instability both theoretically and empirically. It has become astylized fact that premarital cohabitation is positively correlated with the likelihood ofmarital dissolution. This is...