Publications

March 2022
Article

Estimating the Effectiveness of Permanent Price Reductions for Competing Products Using Multivariate Bayesian Structural Time Series Models

By: Fiammetta Menchetti and Iavor Bojinov

Researchers regularly use synthetic control methods for estimating causal effects when a sub-set of units receive a single persistent treatment, and the rest are unaffected by the change. In many applications, however, units not assigned to treatment are nevertheless... View Details

Keywords: Causal Inference; Partial Interference; Synthetic Controls; Bayesian Structural Time Series; Mathematical Methods

January 2019
Editorial

Accounting for Time

By: Ashley Whillans and Hanne Collins

Keywords: Time Management; Valuation; Happiness

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June 1997 (Revised October 2001)
Case

Tutor Time (B)

By: Paul A. Gompers and Catherine M. Conneely

June 1997 (Revised November 1998)
Case

Tutor Time (A)

By: Paul A. Gompers

September 1992 (Revised September 2004)
Background Note

Liabilities and Time

By: William J. Bruns Jr.

An introduction to accounting for liabilities. Both current liabilities and long-term debts are described, and illustrations of bond interest calculations and financial reporting formats are included. View Details

Keywords: Accounting; Legal Liability

01 Dec 2004
News

Boom Times Ahead

Dent: a track record of being right on the money. Photo courtesy Harry Dent For investors, 2005 is going to be a very good year, and several more will follow, stock market guru Harry Dent (MBA ’79) claims in his new book, The Next Great Bubble Boom. “Dent’s basic... View Details

January 2002 (Revised February 2002)
Case

Valuing the AOL Time Warner Merger

By: Lynda M. Applegate, Rena Miller and John N Rei

On January 11, 2000, AOL and Time Warner announced their intention to merge, creating what AOL CEO Stephen Case and Time Warner CEO Gerald Levin called the 21st century's first fully integrated communications, media, and entertainment company. This case, prepared from... View Details

Keywords: Mergers and Acquisitions; Management Analysis, Tools, and Techniques; Valuation; Situation or Environment; Media and Broadcasting Industry; Entertainment and Recreation Industry

Authors Robert Dallek, Ron Chernow, Nancy Koehn and Mark Updegrove joined "Face the Nation" Sunday for a conversation examining leadership in times of crisis. View Details

The New Science of Retailing

Authors Marshall Fisher and Ananth Raman, argue that the time is ripe for “rocket science retailing.” Just as Wall Street was... View Details

2014
Chapter

Better Timing of Cyber Conflict

By: Elisabeth Paulson and Christopher Griffin

In this paper, we construct a model of cyber-weapon deployment and attempt to determine an optimal deployment time for cyberweapons using this model. We compare and contrast our approach to that in Axelrod and Iliev (R. Axelrod and R. Iliev. Timing of cyber conflict.... View Details

Keywords: Cyber-weapons; Cyberwarfare; Cybersecurity; National Security

March 1999
Article

The Time Famine: Towards a Sociology of Work Time

By: Leslie Perlow

Keywords: Time Management

Summer 2025
Article

Time Well Spent: A New Way to Value Time Could Change Your Life

By: Leslie Perlow and Salvatore J Affinito

When individuals engage in fulfilling activities outside of work, they perform better on the job, but simply encouraging work-life balance doesn’t help with hour-by-hour time management. A new tool for measuring the subjective value of time for individuals as it varies... View Details

Keywords: Well-being; Work-Life Balance; Time Management

February 13, 2023
Editorial

The Secret Tax on Women’s Time

By: Lauren C. Howe, Lindsay B. Howe and Ashley V. Whillans

When studies revealed the so-called pink tax, showing in 2015 that personal hygiene products “for her” cost 13% more than similar products for men, it caused outrage and action. The irony that women, despite generally having fewer financial resources than men, are... View Details

Keywords: Gender; Equality and Inequality; Work-Life Balance

October 2009
Article

Making Time Off Predictable—and Required

By: Leslie Perlow and Jessica L. Porter

People in professional services believe a 24/7 work ethic is essential for getting ahead—and so they work 60-plus hours a week and stay tethered to their BlackBerrys. This perpetuates a vicious cycle: Responsiveness breeds the need for more responsiveness. When people... View Details

Keywords: Management Practices and Processes; Performance Expectations; Performance Productivity; Work-Life Balance; Service Industry

February 2002
Article

Market Timing and Capital Structure

By: Malcolm Baker and Jeffrey Wurgler

It is well known that firms tend to raise equity when their market values are high relative to book and past market values. We document that the resulting effects on capital structure are very persistent. As a consequence, current capital structure is strongly related... View Details

Keywords: Valuation; Equity; Capital Structure; Theory; Market Timing; Financial Markets