Heather Tuke

Overview

Heather Tuke appears as a Yale finance professor explaining how margin eligibility can amplify market declines through forced selling.

Current Profile

In How investing is getting riskier (Two Indicators), Tuke uses India’s regulatory division between margin-eligible and non-margin stocks as a natural experiment. Her contribution is mechanistic: when collateral falls, investors must add capital or sell, so the margin basket can decline more sharply during crises.

Key Characteristics

• Academic evidence voice on leverage and asset-price amplification.
• Separates the trigger for a downturn from the forced-selling mechanism that deepens it.
• Uses cross-sectional regulatory variation rather than only historical anecdote.

Evidence

Margin eligibility comparison

• How investing is getting riskier (Two Indicators) attributes to Tuke and a co-author the finding that India’s margin basket fell more than its non-margin basket during crises.

Forced-sale mechanism

• How investing is getting riskier uses her explanation of selling or posting more capital to ground Margin Trading Forced Selling.

Qualifications

• The source note summarizes the research but does not identify the paper, sample, estimates, or identification limits.
• The India result supports amplification, not the claim that margin initiated each crisis.

What Changed

• Added Tuke as the academic evidence voice for margin-driven amplification.

Relationships

• Margin Trading Forced Selling - research mechanism she explains.
• Liquidity-Driven Volatility Cascade - broader market pattern her evidence helps ground.
• Investment Risk Management - investor discipline implied by the liquidation findings.