We relate time-varying aggregate ambiguity (V-VSTOXX) to individual investor trading. We use the trading records of more than 100,000 individual investors from a large German online brokerage from March 2010 to December 2015. We find that an increase in ambiguity is associated with increased...

This study found that people who suffer from seasonal affective disorder (SAD) displayed financial risk aversion that varied across the seasons as a function of seasonally changing affect. The SAD-sufferers had significantly stronger preferences for safe choices during the winter than...

In this paper we study the effect of institutional reform on the decision to hold risky assets at the extensive and the intensive margin. We therefore make use of the natural experiment of German Division and Reunification and, based on savings bank customer data from German savings banks, study...

Using data on identical and fraternal twins' complete financial portfolios, we decompose the cross-sectional variation in investor behavior. We find that a genetic factor explains about one third of the variance in stock market participation and asset allocation. Family environment has an effect...

This paper is concerned with the use of currently available technology to provide individuals, financial advisors and pension fund financial planners with detailed prospective financial plans tailored to an individual's financial goals and obligations. By taking account of all prospective cash...

This study develops innovative measures of financial optimism by defining optimism as the overestimation of the favourable outcome in an individual's future financial situation. The paper finds that optimism has a positive influence on an individual's preference for risky portfolios and a...

This paper provides a short overview of the stylized facts of household finance that relate to investors and their investment decisions. Emphasis is given to mistakes made by individuals, although evidence suggests all categories of market participants are prone to the same biases. The paper...

Using longitudinal data from PSID, we show the positive relation between labor income and the equity share of financial wealth is stronger for those who have a higher persistence in shocks to permanent labor income. The results support the hypothesis that the cross sectional variation in...

Formal dynamic analyses of household portfolio choice in the literature focus on holdings of equity and a risk-free asset or bonds of different maturities, neglecting the interdependence of the decisions to invest in equity, short-term and longterm bonds made by households. Data from the Survey...