European Finance Association Annual Meeting · Belgium · August 2026

Private Equity: A PhD Course

Michael Ewens, Columbia Business School · Three-hour doctoral session

A survey of private equity research built around the frictions private markets create and the contracts they invent to deal with them — with the field's open questions for dissertation-stage students.

What is private equity?

Private capital markets play an increasingly important role in the U.S. and the broader economy, from private equity and venture capital to growth equity and private credit. Each asset class has economics that differ from its public-market counterpart. The closed-end fund, for example, introduces a host of contracting incentives and information challenges. Delegation therefore runs throughout research on private equity. Investors commit capital over long periods, with limited liability, liquidity, and information. Rather than relying on prices, they rely on valuations, often provided at managers' discretion. These stark differences from public markets form the foundation of this PhD session, which provides an overview of key themes in contemporary research and a framework for researchers exploring new and unanswered questions.

Reading packet

Read these three papers before the session.

  1. Brown, G. W., Lundblad, C. T., & Volckmann, W. (2025). Risk-Adjusted Performance of Private Funds: What Do We Know? Institute for Private Capital Working Paper. PDFPerformance and measurement
  2. Gompers, P., Kaplan, S. N., & Mukharlyamov, V. (2016). What Do Private Equity Firms Say They Do? Journal of Financial Economics 121(3), 449–476. PDFWhat sponsors do
  3. Ewens, M., & Farre-Mensa, J. (2022). Private or Public Equity? The Evolving Entrepreneurial Finance Landscape. Annual Review of Financial Economics 14, 271–293. PDFThe public-private boundary
Block 0

Setup: objects, primitives, and data

What is private equity, institutionally and economically?

The object map (LPs, GPs, funds, portfolio companies, lenders, secondary buyers, continuation funds, retail wrappers), the fund lifecycle, and the asset-class taxonomy. Buyout is the baseline throughout.

Suggested readings · 3 papers
Block 1

Risk, return, and measurement

What are the risk-adjusted returns to private equity, and how do we measure them without market prices?

Required pre-read Brown, G. W., Lundblad, C. T., & Volckmann, W. (2025). Risk-Adjusted Performance of Private Funds: What Do We Know? Institute for Private Capital Working Paper. PDF

In-class discussion Kaplan, S. N., & Schoar, A. (2005). Private Equity Performance: Returns, Persistence, and Capital Flows. Journal of Finance 60(4), 1791–1823. PDF

Suggested readings · 11 papers
Block 2

Ownership, governance, and real effects

How do sponsors generate returns, and what are the consequences for firms, workers, consumers, creditors, and competitors — who captures the surplus?

Required pre-read Gompers, P., Kaplan, S. N., & Mukharlyamov, V. (2016). What Do Private Equity Firms Say They Do? Journal of Financial Economics 121(3), 449–476. PDF

In-class discussion Sørensen, M., & Yasuda, A. (2023). Stakeholder Impact of Private Equity Investments. In Handbook of the Economics of Corporate Finance: Vol. 1 (Eckbo, Phillips, Sørensen, eds.), Elsevier, 299–341. PDF

Suggested readings · 7 papers
Block 3

The public-private boundary, including private credit

Why are firms staying private longer, why has lending migrated from banks into private credit, and what happens as private assets move toward retail investors?

Required pre-read Ewens, M., & Farre-Mensa, J. (2022). Private or Public Equity? The Evolving Entrepreneurial Finance Landscape. Annual Review of Financial Economics 14, 271–293. PDF

Suggested readings · 8 papers
Block 4

Private capital innovations

How does an illiquid, finite-life fund structure create demand for private-market liquidity mechanisms — secondaries, continuation funds, NAV lending, semi-liquid retail wrappers?

No required reading: a frontier block, discussed in class.

Suggested readings · 4 papers
Block 5

Unanswered questions

What are the interesting unanswered questions in the field?