Margaret Bray

Affiliated Faculty in other LSE Departments

Emeritus Reader in Economics, Department of Economics, LSE

Education
DPhil in Economics, Oxford University

Research Centres
STICERD Theory Group Associate

Economics | STICERD | Personal website

Publications

More publications

Discussion Papers

The Arbitrage Pricing Theory is not Robust 1: Variance Matrices and Portfolio Theory in Pictures

The assumption of the Arbitrage Pricing Theory can be formulated in terms of the variance matrix V of the returns on a finite or infinite set of asset...

January 1994

DP 178

Margaret Bray

Margaret Bray

Publications

Discussion Papers

The Arbitrage Pricing Theory is not Robust 1: Variance Matrices and Portfolio Theory in Pictures

News

Mike Burkart - Winner of the 2025 ECGI Finance Series Prize

LSE announces launch of an Initiative in Sustainable Finance

Péter Kondor receives Outstanding Paper Award

Events

Cognitive Foundations of Finance Conference

3rd London Political Finance (POLFIN) Workshop

5th Annual Conference on Non-Bank Financial Sector and Finan ...

Seminars

Creditor-on-Creditor Violence and Secured Debt Dynamics

AI Personality Extraction from Faces: Labor Market Implicati ...

The dependence of belief dynamics on beliefs: implications f ...

Publications

Marketwide Memory

The surprising leadership effect accelerators have on startu ...

Bond Supply, Yield Drifts, and Liquidity Provision Before Ma ...