Arbeitspapier

Down or out: Assessing the welfare costs of household investment mistakes

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 assets ('down') and nonparticipation in risky asset markets ('out'). We find that while a few households are very poorly diversified, the cost of diversification mistakes is quite modest for most of the population. For instance, a majority of participating Swedish households are sufficiently diversified internationally to outperform the Sharpe ratio of their domestic stock market. We document that households with greater financial sophistication tend to invest more efficiently but also more aggressively, so the welfare cost of portfolio inefficiency tends to be greater for these households. The welfare cost of nonparticipation is smaller by almost one half when we take account of the fact that nonparticipants would be unlikely to invest efficiently if they participated in risky asset markets.

Sprache
Englisch

Erschienen in
Series: Sveriges Riksbank Working Paper Series ; No. 195

Klassifikation
Wirtschaft
Thema
asset allocation
diversification
familiarity
participation
Anlageverhalten
Portfolio-Management
Risikopräferenz
Wohlfahrtsanalyse
Privater Haushalt
Schweden

Ereignis
Geistige Schöpfung
(wer)
Calvet, Laurent E.
Campbell, John Y.
Sodini, Paolo
Ereignis
Veröffentlichung
(wer)
Sveriges Riksbank
(wo)
Stockholm
(wann)
2006

Handle
Letzte Aktualisierung
10.03.2025, 11:44 MEZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.

Objekttyp

  • Arbeitspapier

Beteiligte

  • Calvet, Laurent E.
  • Campbell, John Y.
  • Sodini, Paolo
  • Sveriges Riksbank

Entstanden

  • 2006

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