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Private equity boosts suppliers but downturns bring cost pressures, study finds - Cyprus Mail

Reported by Cyprus-mail
Oct 18, 2026· 3 min read
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Key Takeaways
  • • A European Central Bank study using data on virtually all Belgian businesses from 2002 to 2021 finds that private equity buyouts boost suppliers' sales by about 8% and employment by about 4% across the post-buyout period.
  • • The supplier gains reverse during economic downturns, when suppliers' markups fall by roughly 8%, indicating customers secured lower prices or more favourable contract terms.
  • • Competitors of private equity-backed firms face spillover effects, with a one standard deviation increase in exposure to shared suppliers associated with 1% lower employment, 2% lower core earnings and 1% lower markups.
  • • Authors Olivier De Jonghe and Cédric Huylebroek recommend competition authorities and central banks assess ownership changes across entire supply chains, not just acquired firms.
  • • The researchers warn that rising interest rates could push leveraged private equity-backed companies toward cost-cutting and tougher supplier negotiations, spreading impact beyond the targets.
Summary
Private equity buyouts can lift suppliers' sales and employment but also intensify cost-cutting during economic downturns, with wider consequences for competition and monetary policy, according to research published by the European Central Bank (ECB). The study, based on data covering virtually all Belgian businesses between 2002 and 2021, was authored by Olivier De Jonghe and Cédric Huylebroek. It drew on company accounts, transactions and inter-business sales data, including small private firms often missing from commercial supply chain databases.

Suppliers serving companies acquired by private equity investors generally perform better than comparable businesses. Following a buyout, the acquired companies typically take on more debt but also grow faster than peers, and their suppliers record around 8% higher sales and 4% higher employment across the post-buyout period. The researchers attribute these gains mainly to increased demand, as backed companies buy more goods and services from existing suppliers. The benefits were strongest when acquired companies had greater room to expand, suppliers made up a larger share of their inputs, or the relationship was well established. The study found little evidence that knowledge transfer, R&D spending, skilled employment or trade credit changes explained the gains, and the effect of additional customers via investor networks was relatively small.

The picture reverses during downturns. Suppliers' markups fell by approximately 8%, suggesting customers secured lower prices or more favourable terms, as private equity-backed firms face stronger pressure to cut costs and meet debt obligations when sales and profits weaken. Suppliers of easily replaceable products and those in highly competitive industries faced greater pressure, particularly when dealing with larger, more experienced investors. Backed companies were also more likely to end supplier relationships during downturns. The effects extend to competitors: when an acquired company expands, it can absorb more of a shared supplier's capacity, and a one standard deviation increase in a competitor's shared-supplier exposure was associated with 1% lower employment, 2% lower core earnings and 1% lower markups.

The authors say these findings matter for competition authorities and central banks, which should consider how ownership changes affect entire supply chains. They suggested regulators could use publicly disclosed supplier information to assess links between private equity targets and competitors before approving transactions. The supplier benefits linked to higher demand were not observed among companies funded by bank debt, highlighting differences between bank and non-bank financing. Finally, the authors warned that rising interest rates could have wider effects, since private equity-backed businesses tend to carry substantial debt. Tighter monetary policy may prompt them to abandon expansion in favour of cost-cutting, tougher supplier negotiations and supply chain changes, spreading the impact beyond the businesses directly affected.

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Sources

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Cyprus-mail Private equity boosts suppliers but downturns bring cost pressures, study finds - Cyprus Mail