Academic Interview – FM201: Sustainable Finance and Impact Investing

Sustainable finance has emerged as one of the most rapidly evolving areas in financial markets, raising questions about how sustainability can be incorporated into investment decisions, corporate strategy and policy design.

In this interview, Professor Martin Oehmke and Professor Christopher Polk reflect on FM201: Sustainable Finance and Impact Investing and the themes it explores.

 

What problem does your course aim to address?

Finance has traditionally centred on risk versus return. For decades, this framework guided decisions from portfolio construction to corporate strategy. But the landscape has shifted. Today's investors recognise that financial decisions carry broader implications – positive social impact on one hand, environmental harm through emissions and pollution on the other.

This presents a critical challenge: investors care about sustainability and social outcomes, but the traditional finance toolkit wasn't designed to address these dimensions. How do we value a company's carbon footprint alongside its profit margin? How do we measure the trade-off between financial returns and social impact? Can we integrate environmental considerations without sacrificing analytical rigor?

This course tackles these questions directly, equipping students with frameworks that extend classical finance to encompass sustainability and impact while maintaining the discipline and precision that defines sound financial analysis.

How does this course fit within the wider context of finance?

Sustainable finance and impact investing represent one of the most dynamic growth areas in finance over the past decade. Assets under management in ESG strategies have surged, major institutional investors have committed to net-zero targets, and sustainability considerations now routinely appear in boardroom discussions.

Yet this rapid growth has sparked backlash. Political headwinds, debates over greenwashing, questions about actual impact versus marketing rhetoric, and concerns about returns have created a contested environment. Some jurisdictions are pulling back from ESG mandates while others double down on climate disclosure requirements.

This tension makes sustainable finance one of the most exciting areas in finance today. It's no longer a niche concern but a battleground where fundamental questions about finance's purpose are contested. The current environment demands deep, critical understanding. Students who can navigate both the promise and pitfalls of sustainable finance will be uniquely positioned as this field evolves.

How can students who take this course apply it in their future career?

Understanding sustainability and social impact has evolved from a specialised interest to an essential skill across finance and beyond. Asset managers build ESG portfolios, investment banks advise on green bonds and sustainability-linked loans, private equity firms assess climate risks in portfolio companies, and corporate finance teams navigate stakeholder capitalism and activist demands.

Beyond finance, these skills matter for consultants advising on corporate strategy, policymakers designing climate regulations, entrepreneurs seeking impact capital, and corporate sustainability officers measuring environmental performance.

This course provides a decisive advantage. We extend classical finance concepts to address sustainability and impact, moving from theory to practice through intensive case study work. Students learn to evaluate ESG claims critically, measure impact rigorously, and apply frameworks to real-world investment decisions. Whether advising a pension fund on climate risk or evaluating corporate sustainability initiatives, students leave with tools they can deploy immediately.

Could you please describe the practical components of the course and how students will engage in hands-on learning in the classroom?

Learning happens through the interplay between foundational concepts and real-world application. While lectures establish theoretical frameworks, case studies bring these ideas to life and create the most engaging learning moments.

Our case studies examine actual investment decisions, corporate sustainability strategies, and policy interventions – situations where theory meets messy reality. Students analyse how investors price sustainability, how companies respond to ESG pressures, how impact gets measured and verified, and how conflicting stakeholder interests get resolved.

Classroom discussion generates remarkable insights. Students bring diverse perspectives – different academic backgrounds, cultural contexts, and views on sustainability itself. One student might identify a financial risk others missed, another might question whether reported impact is genuine, a third might propose an innovative solution to a seeming trade-off.

What makes this approach powerful is its enduring freshness. Even familiar cases reveal new dimensions as students discover unexplored angles. The discussion evolves with current events – recent regulatory changes, corporate sustainability controversies, new research findings – keeping the material vibrant and immediately relevant.

What resources would you recommend to anyone interested in taking this course?

This course has been deliberately designed to be accessible to students with foundational knowledge in finance or economics. The key prerequisite is introductory coursework in these areas, along with basic comfort with mathematics and statistics.

More important than extensive prior knowledge is genuine curiosity and engagement. Students should come ready to grapple with complex questions without easy answers. Is ESG investing consistent with fiduciary duty? Can impact be rigorously measured? How do we balance competing stakeholder interests? The most successful students engage thoughtfully with these tensions rather than seeking simple solutions.

What is the most exciting thing students will learn in the classroom?

The most powerful lesson is the ability to see through the buzzwords and develop genuine mastery. Sustainable finance is awash in terminology – ESG, impact investing, net zero, stakeholder capitalism, green bonds – but these terms often obscure as much as they reveal.

We teach students to cut through the noise. They learn to distinguish substantive sustainability initiatives from greenwashing, to evaluate whether ESG strategies deliver promised outcomes, to identify when impact measurement is rigorous versus aspirational, and to recognise trade-offs that marketing materials gloss over.

Armed with this critical perspective and solid analytical frameworks, students gain a decisive advantage. They can assess sustainability claims independently, ask tough questions, and develop their own informed views. They move beyond simply accepting or rejecting sustainable finance wholesale to understanding its genuine potential and real limitations. In a field characterised by strong opinions and bold claims, this analytical clarity is both rare and invaluable.