Abstract

In this article, we use an advanced microsimulation model to study the distributional effects of the reformed Norwegian pension system with a particular focus on gender equality. The reformed Norwegian system is based on the notional defined contribution (NDC)-formula with fixed contribution/accrual rates over the active life-phase and with accumulated pension wealth being transformed into an annuity upon retirement. A number of redistributive components are built into the system: a unisex annuity divisor, a ceiling on annual earnings, generous child credits, a possibility for widows/widowers to inherit pension rights from a deceased spouse, a targeted guarantee pensions with higher benefit rates to single pensioners compared to married/cohabitating pensioners, and finally a tax system that is particularly progressive in its treatment of pensioners and pension income. Taking complete actuarial fairness as the point of departure, we conduct a stepwise analysis to investigate how these different components of the National Insurance pension system impact on the gender gap in pensions and on general (Gini) inequality in the distribution of pension income within a cohort of pensioners. Our analysis concentrates on one birth cohort – individuals born in 1963 – and we study three different outcomes: the distribution of annual pensions early in retirement (at age 70), the distribution of the total sum of pension benefits received over retirement, and the distribution of the average annual pension benefits received over the retirement phase. In addition, we look at three alternative income concepts. These are personal income, equivalised household income, and finally an original income concept developed for this study: personal income adjusted for the economies of scale enjoyed by couple households.

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