Introduction

Inflation has declined across the major advanced economies from its 2022 highs (despite hitting a speed bump in the first quarter of this year) and economic growth has mostly been positive and in the case of the US has been exceptionally strong. The unemployment rate has also remained lower than expected across the major economies. More economic pain was expected throughout 2023 and 2024 after the major global central banks raised interest rates significantly. One explanation for this situation is the increase in the supply side of the economy.

The basics of supply and demand

Economics 101 is all about the movement of demand and supply in an economy. If there is an increase in demand, the demand curve shifts outwards, increasing the quantity of items demanded (demand moves from Demand 1 in the next chart to Demand 2) which leads to an increase in prices (from P1 to P2). This movement in demand reflects the experience of major advanced economies after the pandemic thanks to large monetary and fiscal stimulus (we didn’t include the impacts of the supply shortages during the pandemic but it’s important to note this also contributed to higher prices).

Source: AMP

Tracking demand is quite straightforward through the many basic economic growth indicators.

However, changes in supply are also important, although they tend to be slower moving and harder to measure than demand. When supply increases (from Supply 1 to Supply 2 in the chart below), the quantity of goods produced increases (the quantity moves from Q1 to Q2), which puts downward pressure on prices. This situation seems to explain the current environment that has seen a slowing in inflation since its 2022 high. There are two main inputs that determine supply in an economy which are labour and capital (which refers to things that are used in production like buildings, machinery and equipment or intangibles like research and development).

Source: AMP

Labour supply

The easiest way to see the lift in supply has been in the labour force. In Australia, the reopening after the pandemic resulted in a massive lift in immigration. Prior to the pandemic, Australia had elevated population growth of 1.6% which was above the OECD average of ~0.6%. Since then, population growth has surged to 2.5% per annum, its highest annual rate since post World War II. More than 80% of the recent lift in population is thanks to immigration (see the next chart).

Source: ABS, AMP

Australia’s experience has been in line with other economies like New Zealand and Canada who have all seen a big lift in population growth (see the chart below) as a post-COVID normalisation in immigration.

Source: Macrobond, AMP

This has resulted in a big inflow of workers into the labour force (the sum of employed and unemployed) every month which is currently running around 60K every month (see the next chart).

Source: Macrobond, AMP

A massive inflow of workers and an increase in the Australian labour force participation rate to a record high (at 67%) has increased labour supply. The pandemic appears to have permanently shifted the labour participation rate higher as more flexibility in the labour market allows a larger pool of workers to better match their skills to a job. Labour demand (a function of employment and job vacancies) has also been strong. In late 2022, labour demand and supply were basically equal (see the next chart) for the first time since 1979 (when the data started) which signals a super tight labour market. Since then, the growth in labour supply has exceeded demand which is resulting in a less tight labour market (i.e. the line in the next chart is moving back down). This is despite continued strong headline jobs growth.

Source: ABS, AMP

We think that the scale of labour market tightness is the best guide to wages growth (and therefore inflation), rather than the headline employment figures which may still look high thanks to high labour supply.
Central banks are also paying more attention to the supply story, particularly as it relates to inflation. Recently, US Federal Reserve Chair Jerome Powell said that the strength in jobs is not necessarily a concern because it reflects the strength in the supply side of the economy.
The other component of supply is capital, which refers to changes in business investment which has also been solid in Australia, especially in plant and equipment and engineering work. Although in Australia, the increase in labour supply has been the more dominant driver of the outward shift in supply.

Implications for investors

We have been too pessimistic about the outlook for Australian consumers partly because we had been looking for a faster unwinding in the labour market and a higher unemployment rate. While Australian consumers are under pressure from high interest rates, elevated inflation and a rising burden from taxes they have been able to offset these negatives by maintaining their wages from employment, as the unemployment rate has remained low. The leading indicators of jobs growth in the business surveys and job vacancies data have slowed but are certainly not collapsing. Yet given the positive labour supply shock that has occurred, you don’t need to see a large fall in jobs to see slower wages growth and some further rise in the unemployment rate. Just to keep the unemployment rate unchanged, employment growth needs to average at 40K/month – this is quite high. Investors should focus on the tightness in the labour market. We think labour supply will outstrip labour demand and see a further slowing in wages growth and a rise in the unemployment rate towards 4.3%, which is still below its pre-pandemic level of over 5%.