Does pension scale really improve member outcomes?

Advocates of pension consolidation often argue that larger schemes will deliver better outcomes for members. In practice, much of this case rests on the assumption that scale improves not just efficiency, but also investment performance and long‑term results for savers.

The evidence suggests a more nuanced picture.

Independent research by the Pensions Policy Institute (PPI) finds that where scale does deliver clear benefits, these are most consistently linked to cost savings, rather than higher investment returns. Larger schemes may reduce per‑member administration costs, regulatory overheads, and some transaction expenses. These efficiencies can be valuable, particularly in a price‑sensitive environment.

However, the research finds far less consistent evidence that scale alone leads to superior investment outcomes. Investment performance remains heavily influenced by asset allocation, manager skill, governance quality, and market conditions. Simply being larger does not resolve these factors, nor does it guarantee better decision‑making or stronger returns.

This distinction matters. Lower costs can improve value for members, but they are not the same as better outcomes. Treating scale as a proxy for performance risks overstating what consolidation alone can realistically deliver.

Download the full PPI report below to explore the evidence in more detail.

Important information 

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