Publications

SSRN

May 2008
Article

Excess Comovement of Stock Returns: Evidence from Cross-sectional Variation in Nikkei 225 Weights

In the presence of limits to arbitrage, cross-sectional variation in periodic investor demand should be related to the degree of comovement of returns. I exploit the unusual weighting system of the Nikkei 225 index in Japan to identify cross-sectional variation in... View Details

Keywords: Stocks; Investment; Investment Return; Market Transactions; Weight; Performance Expectations; Behavior; Japan

March 2008 (Revised January 2009)
Teaching Note

Opportunity Partners (TN)

Teaching Note for [208097]. View Details

March 2008
Supplement

The Nikkei 225 Reconstitution (CW)

February 2008
Teaching Note

Kerr-McGee (TN)

Teaching Note for [207020]. View Details

Keywords: Energy Industry; Chemical Industry; United States

January 2008 (Revised July 2008)
Case

Opportunity Partners

By: Robin Greenwood and James Quinn

Philip Goldstein, the principal in a growing hedge fund and prominent activist investor, has taken a position in a Mexico-based closed-end fund. Following a hard-fought proxy contest in which he advocated for management to eliminate the fund's substantial discount,... View Details

Keywords: Investment Activism; Investment Funds; Business and Shareholder Relations; Value; Financial Services Industry; Mexico

2008
Working Paper

Catering through Nominal Share Prices

By: Malcolm Baker, Robin Greenwood and Jeffrey Wurgler

We propose and test a catering theory of nominal stock prices. The theory predicts that when investors place higher valuation on low-price firms, managers will maintain share prices at lower levels, and vice-versa. Using measures of time-varying catering... View Details

Keywords: Stocks; Stock Shares; Investment; Investment Return; Price; Theory; Valuation

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January 2008
Article

When (Not) to Listen to Activist Investors

By: Robin Greenwood and Michael Schor

Keywords: Investment

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September – October 2007
Article

Trading Patterns and Excess Comovement of Stock Returns

By: Robin Greenwood and Nathan Sosner

n April 2000, 30 stocks were replaced in the Nikkei 225 Index. The unusually broad index redefinition allowed for a study of the effects of index-linked trading on the excess comovement of stock returns. A large increase occurred in the correlation of trading volume of... View Details

Keywords: Stocks; Investment Return; Market Transactions; Mathematical Methods

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2007
Working Paper

Hedge Fund Investor Activism and Takeovers

By: Robin Greenwood and Michael Schor

We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are... View Details

Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance

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2007
Other Unpublished Work

Hedge Fund Investor Activism and Takeovers

By: Robin Greenwood and Michael Schor

We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are acquired ex-post, but not... View Details

Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance

SSRN

March 2007 (Revised March 2011)
Teaching Note

The Nikkei 225 Reconstitution (TN)

Teaching note to 207109. View Details

March 2007 (Revised March 2008)
Case

The Nikkei 225 Reconstitution

Taka Haneda, a proprietary trader at the Tokyo office of Goldman Sachs, has just learned that the Nikkei 225 will undergo a significant redefinition over the coming week. He faces several billion dollars of customer orders, as well as the opportunity to commit the... View Details

Keywords: Financial Liquidity; Stocks; Investment Return; Price; Market Transactions; Financial Services Industry; Tokyo

November 2006 (Revised July 2021)
Case

Kerr-McGee

By: Robin Greenwood and André Perold

Activist investors Carl Icahn and Barry Rosenstein acquire a stake in Oklahoma-based company Kerr-McGee. They demand two board seats and ask the company to make several operational and financial changes, including the repurchase of equity and divestiture of their... View Details

Keywords: Investment Activism; Restructuring; Equity; Investment; Management; Governance Controls; Corporate Strategy; Chemical Industry; Energy Industry; United States

August 2006 (Revised September 2008)
Case

Duane Morris: Balancing Growth and Culture at a Law Firm

By: Boris Groysberg and Robin Abrahams

After nearly 100 years as a mid-size regional law firm, Duane Morris entered a period of spectacular growth led by CEO Sheldon Bonovitz. Originally founded by Quakers, the firm had a distinct organizational culture featuring a number of unique or unusual business... View Details

Keywords: Mergers and Acquisitions; Growth and Development Strategy; Management Practices and Processes; Organizational Culture; Competitive Advantage; San Francisco

April 2006 (Revised November 2006)
Case

Livedoor

By: Robin Greenwood and Michael Schor

The president of Fuji Television must decide how to respond to a competing bid for the shares of Nippon Broadcasting Systems (NBS). Livedoor, the other bidder, is a highly valued Internet company that has been accused of financial wizardry to keep its stock price high. View Details

Keywords: Stock Shares; Internet and the Web; Ethics; Television Entertainment; Behavioral Finance; Corporate Finance; Media and Broadcasting Industry; Japan