This paper derives optimal lifecycle asset allocations for consumers who select work hours and re... more This paper derives optimal lifecycle asset allocations for consumers who select work hours and retirement ages given uncertain labor income and investment returns. These shocks shape retirement and asset allocation patterns in complex ways: negative labor market shocks and high stock returns influence the young to work less and buy more annuities, and later, to retire early. This flexibility enhances
This paper derives optimal life cycle portfolio asset allocations as well as annuity purchases tr... more This paper derives optimal life cycle portfolio asset allocations as well as annuity purchases trajectories for a consumer who can select her hours of work and also her retirement age. Using a realistically-calibrated model with stochastic mortality and uncertain labor income, we extend the investment universe to include not only stocks and bonds, but also survival-contingent payout annuities. We show that making labor supply endogenous raises older peoples' equity share; substantially increases work effort by the young; and markedly enhances lifetime welfare. Also, introducing annuities leads to earlier retirement and higher participation by the elderly in financial markets. Finally, when we allow for an age-dependent leisure preference parameter, this fits well with observed evidence in that it generates lower work hours and smaller equity holdings at older ages as well as sensible retirement age patterns.
The direct financial impact of the financial crisis has been to deal a heavy blow to investment-b... more The direct financial impact of the financial crisis has been to deal a heavy blow to investment-based pensions; many workers lost a substantial portion of their retirement saving. The financial sector implosion in turn produced an economic crisis for the rest of the economy via high unemployment and reduced labor earnings, which reduced contributions to Social Security and private pensions. Our research asks which types of individuals were most affected by these dual financial and economic shocks, and it also explores how people may react by changing their consumption, saving and investment, work and retirement, and annuitization decisions. We do so with a realistically calibrated lifecycle framework allowing for time-varying investment opportunities and countercyclical risky labor income dynamics. We show that households near retirement will reduce both short-and long-term consumption, boost work effort, and defer retirement. Younger cohorts will initially reduce their work hours, consumption, saving, and equity exposure; later in life, they will have to work more, retire later, consume less, invest more in stocks, and save more.
This paper derives optimal lifecycle asset allocations for consumers who select work hours and re... more This paper derives optimal lifecycle asset allocations for consumers who select work hours and retirement ages given uncertain labor income and investment returns. These shocks shape retirement and asset allocation patterns in complex ways: negative labor market shocks and high stock returns influence the young to work less and buy more annuities, and later, to retire early. This flexibility enhances
This paper derives optimal life cycle portfolio asset allocations as well as annuity purchases tr... more This paper derives optimal life cycle portfolio asset allocations as well as annuity purchases trajectories for a consumer who can select her hours of work and also her retirement age. Using a realistically-calibrated model with stochastic mortality and uncertain labor income, we extend the investment universe to include not only stocks and bonds, but also survival-contingent payout annuities. We show that making labor supply endogenous raises older peoples' equity share; substantially increases work effort by the young; and markedly enhances lifetime welfare. Also, introducing annuities leads to earlier retirement and higher participation by the elderly in financial markets. Finally, when we allow for an age-dependent leisure preference parameter, this fits well with observed evidence in that it generates lower work hours and smaller equity holdings at older ages as well as sensible retirement age patterns.
The direct financial impact of the financial crisis has been to deal a heavy blow to investment-b... more The direct financial impact of the financial crisis has been to deal a heavy blow to investment-based pensions; many workers lost a substantial portion of their retirement saving. The financial sector implosion in turn produced an economic crisis for the rest of the economy via high unemployment and reduced labor earnings, which reduced contributions to Social Security and private pensions. Our research asks which types of individuals were most affected by these dual financial and economic shocks, and it also explores how people may react by changing their consumption, saving and investment, work and retirement, and annuitization decisions. We do so with a realistically calibrated lifecycle framework allowing for time-varying investment opportunities and countercyclical risky labor income dynamics. We show that households near retirement will reduce both short-and long-term consumption, boost work effort, and defer retirement. Younger cohorts will initially reduce their work hours, consumption, saving, and equity exposure; later in life, they will have to work more, retire later, consume less, invest more in stocks, and save more.
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Papers by Jingjing Chai