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The Grey Wave: Exploring the impact of an ageing population on the financial system

In this special topic we consider ways that an ageing population could affect the New Zealand financial system.

Enzo Cassino and Anoushka Divekar

New Zealand’s population will continue to age over the next several decades. The economic impact of an ageing population is likely to be gradual. However, it is important for financial entities to understand and be prepared to manage the changes and any potential risks from an ageing population.

Key findings

  • Overall savings are expected to increase as older workers prepare for retirement.
  • Changes in savings behaviour will impact interest rates. An older population has contributed to lower neutral interest rates in recent decades and is expected to continue putting downward pressure on interest rates in the near term. Other factors could offset this impact, making projections of the neutral interest rate uncertain.
  • The strength and speed of monetary policy transmission to the real economy may change. Increased expenditure on healthcare and superannuation will impact fiscal policy.
  • Lower interest rates could increase prices of assets such as housing and equities, but lower risk appetite of older investors may increase demand for less risky assets. The types of houses in demand could change.
  • Banks’ lending and funding may be impacted by population ageing. Deposit funding may increase, while credit demand for housing could decline. If demand for housing loans declines, banks may increase other types of lending or expand provision of other services, such as wealth management.
  • Demand for insurance products may change, with lower demand for life insurance and higher demand for health insurance due to higher healthcare needs.

Figure 5 - Transmission channels of an ageing population to the financial system

An ageing population can impact the financial system through several channels as seen in this chart. The impacts could change the nature of the financial system and the services it provides.

A chart showing the transmission channels of an ageing population
Source: RBNZ

First column: Savings/investments

  • Aggregate savings increase.
  • Investors become more conservative.
  • Continued growth in KiwiSaver assets.
  • Banks face higher deposit inflows and lower demand for housing loans.
  • Banks may increase lending for non-housing loans or provide other services.

Second column: Asset prices/interest rates

  • Increased savings will continue to put downward pressure on the neutral interest rate in the near term.
  • Monetary policy strategy and transmission will change.
  • Types of housing demanded will change, impacting the construction sector.
  • Demand for equities may fall with higher risk aversion.

Third column: Changing financial needs

  • Life insurance demand may decline.
  • Health insurance demand may increase, although greater existing medical conditions may restrict growth.

Fourth column: Fiscal Policy

  • Fiscal spending on healthcare and other age-related spending is expected to increase.
  • Fiscal policy response to macroeconomic shocks may be more constrained.