"This paper investigates the dynamics of individual portfolios in a unique dataset containing the disaggregated wealth of all households in Sweden. Between 1999 and 2002, we observe little aggregate rebalancing in the financial portfolio of participants. These patterns conceal strong...

This paper investigates the efficiency of household investment decisions in a unique dataset containing the disaggregated wealth and income of the entire population of Sweden. The analysis focuses on two main sources of inefficiency in the financial portfolio: underdiversification of risky...

We document that, on average, U.S. equity mutual funds prefer realizing capital losses rather than capital gains. A substantial fraction of the sample, however, exhibits the opposite tendency of realizing gains more readily than losses. The documented tendency for this subset appears to be due...

US equity mutual funds, on average, prefer realization of capital losses to capital gains. Nevertheless, a substantial fraction exhibits the disposition effect of realizing gains more readily than losses. My analysis suggests that learning effects have reduced the manifestation of the...

Social Security rules that determine retirement, spousal, and survivor benefits, along with benefit adjustments according to the age at which these are claimed, open up a complex set of financial options for household decisions. These rules influence optimal household asset allocation,...

We document that prior work experience of mutual fund managers outside of the asset management industry is valuable from an investment perspective in that it provides managers with a stock picking and industry timing advantage. Fund managers' stock picks from industries where they previously...

We test the relation between ambiguity aversion and five household portfolio choice puzzles: non- participation, low allocations to equity, home-bias, own-company stock ownership, and portfolio under- diversification. In a representative U.S. household survey, we measure ambiguity aversion using...

In view of the growth and popularity of defined contribution pensions, along with the government's growing attention to retirement plan costs and investment choices provided, it is important to understand how people select their retirement plan investments. This paper shows how employees in a...