Redirecting alternative funding to high-priority investments can broaden the economic base and strengthen fiscal sustainability.
Public investment delivers benefits across asset classes, but investment in digital and technological capital offers particularly strong long-term gains in productivity and fiscal sustainability. Those gains can be amplified when governments pair investment discipline with new funding approaches.
EY analysis and modelling of public investment strategies show how different funding choices shape productivity, growth and fiscal sustainability.
Our assessment of 10 western European countries over a 30-year horizon shows how aging populations increase fiscal pressure while also creating an opportunity. As public-sector workers retire, governments can capture labour savings and redirect them to digital, technological and other forms of capital. Done well, this improves both affordability and effectiveness.
Funding digital and technological capital investments through labour savings creates a two-stage effect. Technology adoption raises productivity, while capital stock increases as labour input declines. Together, these shifts increase gross domestic product (GDP) by about 0.5% around year 10 for the median country.
In this scenario, GDP would remain above the benchmark for more than 30 years, indicating sustained gains from the initial investment. Over three decades, the model shows GDP multipliers of roughly three times the original investment. In other words, every $1 invested would generate nearly $3 in GDP over time. Tax revenue multipliers would also improve, suggesting these investments can strengthen government revenue as well as economic growth.
The benefits vary by country, reflecting differences in:
- Investment capacity, which depends on the total annual compensation of the public sector workforce
- Starting levels of digital and technological capital, since countries with lower digital and technological capital tend to see greater returns from additional investment
Overall, the model shows that the full targeted reallocation of labour savings can be achieved through retirements from 2026 onwards. That’s significant, especially given the average age of the public-sector workforce is continuing to rise in most countries.
We explored three other scenarios:
- Borrowing to finance digital and technological capital can deliver comparable growth outcomes. This approach increases total factor productivity (TFP) spillovers and raises the contribution of capital to GDP. With both higher capital and a stable workforce, GDP growth strengthens across all time horizons. The trade off is higher fiscal risk, including larger deficits if borrowing is not managed carefully.
- Funding general capital investments through labour savings reduces productivity in the near term. In this scenario, capital deepening does not fully offset the loss of workforce capacity, even though capital accumulation supports gradual GDP growth over time.
- Borrowing to finance general capital investment produces gradual long-term GDP gains. In this case, capital accumulation gradually compensates for modest productivity losses.
Of course, there’s no one-size-fits-all approach. The effects of financing digital and technological capital through borrowing, for example, differ across countries. Investment strategies therefore need to reflect each country’s unique economic context, fiscal capacity and implementation discipline.
Redirecting labour attrition into productive investment can strengthen growth and resilience
Treating demographic change as a source of investment capacity allows governments to free up resources for technology, to boost productivity and growth, and to create a clearer path to debt reduction. Depending on how widely this approach is adopted, it can also improve fiscal competitiveness.
This opportunity does not remove the need to invest in hiring and upskilling. While demographic trends can enable smoother workforce adjustments, they can also leave the public sector with an older and less dynamic workforce if talent renewal is neglected.
Overall, alternative allocation strategies can improve long-term productivity, growth and fiscal sustainability. When governments direct investment towards high-return assets, especially digital and technological capital, they can strengthen growth and public finances without increasing overall spending.
Fiscal competitiveness depends on strategic investment, not simply higher spending. Governments that pair this approach with strong governance and clear measurement of impacts, trade offs and delivery pathways are better positioned to convert fiscal pressure into long-term public value.