首页|Target benefit versus defined contribution scheme: a multi-period framework
Target benefit versus defined contribution scheme: a multi-period framework
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NETL
NSTL
Cambridge Univ Press
Abstract A target benefit plan (TBP) is a collective defined contribution (DC) plan that is growing in popularity in Canada. Similar to DC plans, TBPs have fixed contribution rates, but they also implement pooling of longevity and investment risk. In this paper, we formulate a multi-period model that incorporates two sources of risk – asset risk and labor income risk for active members. We present an optimal investment and retirement benefits schedule for TBP members with a fixed contribution rate. Using Australian data from 1965 to 2018, we evaluate the performance of the optimal TBP scheme and compare it to the optimal DC scheme. By adopting the benefit–investment strategy derived in this paper, we demonstrate the stability of benefit distribution over time for a TBP scheme in this stochastic formulation. To outperform the DC scheme’s benefit payment, careful consideration shall be given to the benefit target in the TBP scheme. A high target may not be achievable, while a low target can impede the accumulation momentum of the fund’s wealth in its early stages. Moreover, a TBP fund’s investment strategy is primarily influenced by the wealth target, with more aggressive investments in risky assets as the wealth target increases. This analysis may shed light on the possible improvements to retirement planning in Australia. Although the results are sensitive to the choice of model parameters, overall, the proposed TBP promotes system stability in various scenarios.
Collective defined contributionmulti-periodoptimal investmentreplacement ratestochastic wage
Ping Chen、Haixiang Yao、Hailiang Yang、Dan Zhu
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Centre for Actuarial Studies
School of Finance
Department of Financial and Actuarial Mathematics, Xi’an Jiaotong-Liverpool
Department of Econometrics and Business Statistics, Monash University, Melbourne
NETL
NSTL
Cambridge Univ Press
