Monetary policy cuts R&D most in high-growth, equity-reliant firms
A Bank of England Staff Working Paper finds that contractionary monetary policy disproportionately reduces research and development (R&D) in high-growth firms reliant on external equity finance. The study, using Norwegian data from 2001–18, highlights the asset-price channel of monetary transmission.
Equity finance shapes innovation cuts
The study reveals that a 100-basis-point increase in interest rates reduces internal R&D spending by approximately 0.5% of value added.
This decline is swift, primarily driven by R&D-related wage expenditures, and partly due to some firms temporarily exiting R&D.
Productivity declines later, consistent with lower innovation feeding through to firm performance with a lag.
Crucially, this average effect masks substantial heterogeneity: firms with recent equity issuance and high prior growth reduce R&D significantly more than other firms.
Standard debt-related measures do not systematically explain these cross-sectional responses.
The sharpest R&D declines are observed in firms combining both high growth and equity dependence, implying that monetary policy actively reallocates innovation across firms, disproportionately affecting dynamic, high-growth innovators.
Long-run real effects on productivity
The compositional pattern is economically important, as high-growth firms drive disproportionate job creation, output, and productivity growth.
If tighter monetary policy compels these firms to reduce R&D, long-run real effects of disinflation could exceed aggregate averages.
The paper's findings support the asset-price channel of monetary transmission: higher discount rates lower firm valuations, increasing the effective cost of equity-financed investment.
Unlike traditional debt-based transmission, this channel disproportionately affects high-growth firms with back-loaded cash flows, whose valuations are highly sensitive to discount rates.
Understanding this allocation of monetary transmission across firms is crucial for grasping its aggregate and long-run real effects.
Innovation's hidden cost
This study challenges the traditional view of monetary policy neutrality, revealing a critical, often overlooked, compositional effect on innovation.
By disproportionately impacting high-growth, equity-dependent firms, tighter policy may inadvertently stifle future productivity and long-term economic potential.
Policymakers should consider these nuanced, long-run real effects when calibrating monetary stances.