This paper presents and compares several time-series models for returns of broadbased stock indices. These models nest a nonlinear asymmetric GARCH (NGARCH) model as a special case. Some of these models are empirically motivated ad-hoc specifications others are derived from a representative...

Similarity between two stocks is measured by the distance between their characteristics such as price, size, book-to-market, return on assets, and investment-to-assets. We find that after a stock's most similar stocks have experienced high (low) returns in the past month, this focal stock tends...

Historische Entwicklung und rechtliche Ausgestaltung von Vorzugsaktien -- Stimmrechtslose Vorzugsaktien als Finanzierungsquelle und als Anlageinstrument -- Ökonomische Analyse von Dual-Class-Strukturen -- Kursunterschiede, Renditen und Aktionärsstrukturen von Dual-Class-Unternehmen