Changes in income are a routine part of life and often signify milestones like entering the labour market, career advancement, caring for children or retiring. While some income shifts can be beneficial, not all of them contribute to people's overall well-being. Income losses can have far‑reaching negative consequences on people’s lives and on society, especially when precipitated by unexpected events such as job loss or illness. Concerns about job losses and working hours rose recently with the onset of COVID‑19 and even though labour markets are currently tight in most OECD countries, long-term structural changes – including digital transformation, globalisation and population ageing – mean that some people perennially face the risks of job insecurity.
People’s circumstances change frequently in European OECD countries – with one-third of working-age people who changed their employment status in the 48-month reference period doing so multiple times a year. In many cases, employment statuses changed in ways that did not imply sustained income growth. For instance, across all European OECD countries, only 20% of individuals in working-age households experienced sustained, upward income growth of at least 25% in the 48-month reference period. In contrast, the majority of income instability comprised either volatile changes in income or a downward trend. These estimates are likely conservative, as they focus only on income instability linked to changes in employment status, rather than other sources of income shocks, like family breakdown.
Income instability is concentrated among people who are already susceptible to falling into poverty, such as those who are unemployed, workers on temporary or no employment contracts, or those in single-income or young households. As a consequence, people with unstable, low incomes have limited upward social mobility and tend to stay in the bottom of the income distribution (rather than moving into higher income brackets), and their children are more likely to face developmental delays and have poorer educational performance than children from families that do not experience income instability. Income instability is therefore likely to impede upward infra- and inter-generational social mobility.