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The Effect of Public Pension Eligibility Age on Household Saving: Evidence from a New Zealand Natural Experiment

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Abstract

This paper examines the effect of the last increase in the eligibility age for New Zealand’s public pension, New Zealand Superannuation, on household saving rates. The age of eligibility was increased progressively from 60 to 65 years old between 1992 and 2001, with little forewarning. Drawing on Household Economic Survey data, the paper uses difference-in-difference regression analysis to compare the last cohorts to receive New Zealand Superannuation at the age of 60 years old with the first to face higher eligibility ages. The policy change is found to have increased average saving rates of affected households, particularly among middle-income and older households. The increase in saving rates is associated with higher household labour supply and income, and lower expenditure. The results suggest the policy change initially lifted the aggregate household saving rate by around 2.5 percentage points with the effect declining slightly over time.

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  • Talosaga Talosaga & Mark Vink, 2014. "The Effect of Public Pension Eligibility Age on Household Saving: Evidence from a New Zealand Natural Experiment," Treasury Working Paper Series 14/21, New Zealand Treasury.
    • Handle: RePEc:nzt:nztwps:14/21
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    File URL: https://treasury.govt.nz/sites/default/files/2014-11/twp14-21.pdf
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    1. Emma Aguila, 2011. "Personal Retirement Accounts and Saving," American Economic Journal: Economic Policy, American Economic Association, vol. 3(4), pages 1-24, November.
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    10. Marianne Bertrand & Esther Duflo & Sendhil Mullainathan, 2004. "How Much Should We Trust Differences-In-Differences Estimates?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(1), pages 249-275.
    11. Anne-Marie Brook, 2014. "Options to Narrow New Zealand’s Saving – Investment Imbalance," Treasury Working Paper Series 14/17, New Zealand Treasury.
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    Cited by:

    1. Mark Vink, 2014. "Intergenerational Developments in Household Saving Behaviour," Treasury Working Paper Series 14/23, New Zealand Treasury.
    2. Anne-Marie Brook, 2014. "Options to Narrow New Zealand’s Saving – Investment Imbalance," Treasury Working Paper Series 14/17, New Zealand Treasury.

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    More about this item

    Keywords

    Household Saving; Retirement Income; New Zealand Superannuation;
    All these keywords.

    JEL classification:

    • D14 - Microeconomics - - Household Behavior - - - Household Saving; Personal Finance
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions
    • J26 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Retirement; Retirement Policies

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