Benjamin Guin, Mahmoud Fatouh and Haluk Unal

Regulation has been asserted to be a brake on innovation. Prudential guidelines impose capital, liquidity and disclosure necessities, in addition to stress checks, to strengthen resilience and handle dangers – although some view them as probably limiting monetary innovation. But current proof from the UK mortgage market suggests the alternative: regulation can generally catalyse innovation, not suppress it.
Rethinking product innovation
Product innovation in banking is often outlined as the event and introduction of latest monetary devices, providers, or contractual options that broaden the alternatives obtainable to clients. In different phrases, it isn’t nearly tweaking current contracts – it’s about broadening the baseline product menu. The UK mortgage market is especially well-suited for analysing product innovation, due to its clear and secure definitions of baseline merchandise and clear pricing buildings. This permits us to systematically detect when new options are launched and start to affect pricing, revealing how lenders adapt their choices in response to each market developments and coverage indicators.
Regulatory strain as a catalyst
One such sign was the introduction of the Minimal Power Effectivity Requirements (MEES) in 2018, which focused properties with low vitality effectivity scores, measured by Power Efficiency Certificates (EPCs). The MEES did greater than impose compliance necessities on landlords; it signalled a shift within the threat panorama for banks, as poor vitality scores grew to become a threat issue for property values and mortgage collateral. Though MEES didn’t regulate banks straight, our estimates present a significant inexperienced low cost within the pricing of such loans rising round 2018. Lenders thus anticipated the MEES affect and adjusted pricing as proven in Chart 1 – a proactive response fairly than box-ticking. In keeping with our framework, this adjustment in pricing factors to product innovation, as monetary establishments responded to regulatory indicators by creating differentiated mortgage merchandise and incentives that replicate vitality efficiency. This low cost grew to become much more pronounced after the 2022 vitality worth shock, when vitality effectivity moved from a coverage precedence to a monetary necessity.
Chart 1: Timing of inexperienced mortgage low cost

Notes: The chart exhibits how the pricing low cost for vitality‑environment friendly properties advanced over time. Every level displays the estimated impact of a inexperienced ranking on mortgage spreads relative to comparable non‑inexperienced loans, with 95% confidence intervals.
Banks didn’t reply uniformly within the innovation interval post-2018. Systemic banks – designated as domestically systemic (D-SIB) or globally systemic (G-SIB) by the UK PRA or by international regulators based mostly on dimension, interconnectedness, and substitutability – had been on the forefront of innovation. Chart 2 illustrates this heterogeneity. Bar (1), in navy, exhibits the principle impact post-2018: on common, energy-efficient properties obtain a major inexperienced low cost on mortgage spreads. Bars (2) to (4), illustrate the results by financial institution class relative to the impact of different banks. Bar (2) exhibits that listed banks supplied a further low cost in comparison with non-listed banks, suggesting investor scrutiny issues. Bar (3) exhibits systemic banks – together with these underneath regulatory local weather stress testing – additionally utilized an extra low cost relative to non-systemic. Bar (4) is near zero, that means listed however non-systemic banks didn’t provide an additional low cost over non-listed and listed and systemic banks. General, regulatory scrutiny – for instance by C-BES – seems central to shaping inexperienced product choices.
Chart 2: Mortgage pricing: financial institution heterogeneity (post-2018)

This concept of regulatory strain is in step with two different underlying financial mechanisms: banks could innovate to sign sturdy threat governance to buyers and supervisors, demonstrating proactive administration of rising dangers; or banks could search to minimise future compliance prices by embedding new standards into merchandise early, pre-empting regulatory burdens. In each circumstances, regulatory strain acts not simply as a constraint, however as a catalyst for brand spanking new product growth – as seen within the rise of inexperienced mortgages.
Innovation and financial development
The emergence of inexperienced mortgages exhibits how banks can reply to rising dangers by increasing their product menus. As vitality effectivity grew to become a salient coverage precedence, lenders started providing mortgages with discounted charges for houses assembly greater requirements, embedding this criterion into pricing. Chart 3 exhibits that inexperienced mortgages are predominantly related to new buildings: round 68% of mortgages for properties with inexperienced traits are for brand spanking new builds, in comparison with simply 3% for properties with out inexperienced traits. This means that inexperienced mortgage merchandise have primarily supported patrons of newly constructed, energy-efficient houses. By bettering entry to finance for these properties, inexperienced mortgages could have contributed to elevated demand for brand spanking new, energy-efficient housing and, not directly, to development exercise. Whereas the broader financial affect requires additional examine, this sample illustrates how regulatory-driven innovation can affect markets past the monetary sector.
Chart 3: Share of latest buildings by EPC

A broader lesson
Inexperienced mortgage merchandise are only one instance. The identical dynamic can apply to different dangers – cyber, operational, or liquidity. When regulation highlights a brand new threat, banks could reply not simply by tightening controls, however by designing new merchandise that tackle it straight.
If regulation can drive product innovation, the implications are important. Supervisors and policymakers may see such innovation as an indication of wholesome adaptation. Monitoring the emergence of latest merchandise can provide early insights into how markets internalise new dangers – and the way coverage can form actual financial outcomes.
Briefly: regulation and innovation aren’t at all times at odds. Generally, it’s the catalyst that will get banks pondering in another way about threat – and in regards to the merchandise they provide.
Benjamin Guin works within the Financial institution’s Technique and Coverage Strategy Division, Mahmoud Fatouh works within the Financial institution’s Prudential Framework Division and Haluk Unal works on the College of Maryland.
If you wish to get in contact, please electronic mail us at bankunderground@bankofengland.co.uk or go away a remark under.
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