donderdag 22 maart 2012

Investment habits are to a considerable extent inherited (a Dutch news site) discussed a study by Henrik Cronqvist en Stephan Siegel ‘Why Do Individuals Exhibit Investment Biases?’ of 15,000 twins, of whom 4600 monovular.

They looked at five common investment mistakes: lack of diversity, too much trading, too much risk avoidance ‘performance chasing’ (buying shares that did well in the past) and too much greed. The monovular twins showed more similarity, even when they had been raised separately. For the preference for well known names and trade marks they found a similar effect.