Das Anlageverhalten von Privatinvestoren unterscheidet sich teilweise markant vonden Voraussagen, welche man aufgrund von Modellen der Portfolioselektion anstellenwürde: so sind beispielsweise Portfolios häufig nicht breit diversifiziert, weder bezüglichder Anzahl der Titel noch bezüglich...

Current discussions about public and private pension plans often include a statement that thestock market is less risky in the long run than in the short run. Pension plans with their ratherlong planning horizon are therefore asked to increase their allocation to the stock market.These...

This paper originates in an email sent by the second author wondering whether the first author knewabout Bronzin’s booklet on option pricing, dating back almost a century and containing formulas whichappear rather similar to those developed by Black-Scholes. The scepticism of the first author...