Consistent with mental accounting, we document that investors sometimes choose the asset allocation for one account without considering the asset allocation of their other accounts. The setting is a firm that changed its 401(k) matching rules. Initially, 401(k) enrollees chose the allocation of their own contributions, but the firm chose the match allocation. These enrollees ignored the match allocation when choosing their own-contribution allocation. In the second regime, enrollees simultaneously selected both accounts’ allocations, leading them to mentally integrate the two. Own-contribution allocations before the rule change equal the combined own- and match-contribution allocations afterwards, whereas combined allocations differ sharply across regimes.
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Length: Date of creation: Nov 2007 Date of revision: Handle: RePEc:nbr:nberwo:13656
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Find related papers by JEL classification: D01 - Microeconomics - - General - - - Microeconomic Behavior: Underlying Principles D14 - Microeconomics - - Household Behavior - - - Personal Finance G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions G23 - Financial Economics - - Financial Institutions and Services - - - Pension Funds; Other Private Financial Institutions J26 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Retirement; Retirement Policies
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James J. Choi & David Laibson & Brigitte C. Madrian & Andrew Metrick, 2003.
"Optimal Defaults,"
American Economic Review,
American Economic Association, vol. 93(2), pages 180-185, May.
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