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Strategy

See the latest research, articles and faculty on the Strategy Area of Expertise at Columbia Business School.

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Strategy Faculty

CBS Faculty Research on Strategy

The Language of Branding: Theory, Strategies, and Tactics

Authors
Dawn Lerman, Robert Morais, and David Luna
Date
January 1, 2018
Format
Book
Publisher
Routledge

The Language of Branding: Theory, Strategies and Tactics shows marketers how to use language successfully to improve brand value and influence consumer behavior.

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Alpha decay

Authors
Rick Di Mascio, Anton Lines, and Narayan Naik
Date
November 22, 2017
Format
Working Paper

Using a novel sample of professional asset managers, we document positive incremental alpha on newly purchased stocks that decays over twelve months. While managers are successful forecasters at these short-to-medium horizons, their average holding period is substantially longer (2.2 years). Both slow alpha decay and the horizon mismatch can be explained by strategic trading behavior.

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Interest Rate Pass-Through: Mortgage Rates, Household Consumption, and Voluntary Deleveraging

Authors
Marco Di Maggio, Amir Kermani, Ben Keys, Tomasz Piskorski, Rodney Ramcharan, Amit Seru, and Vincent Yao
Date
November 1, 2017
Format
Journal Article
Journal
American Economic Review

Exploiting variation in the timing of resets of adjustable rate mortgages (ARMs), we find that a sizable decline in mortgage payments (up to 50%) induces a significant increase in car purchases (up to 35%). This effect is attenuated by voluntary deleveraging. Borrowers with lower incomes and housing wealth have significantly higher marginal propensity to consume. Areas with a larger share of ARMs were more responsive to lower interest rates and saw a relative decline in defaults and an increase in house prices, car purchases, and employment.

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Beyond the Mogul: From Media Conglomerates to Portfolio Media

Authors
Eli Noam
Date
September 15, 2017
Format
Journal Article
Journal
Journalism

The article shows that outside ownership of media moves in stages -- from media properties as the mouthpiece for personal and business interests, to a second stage of conglomerates seeking economic “synergies” of performance, to a third stage dominated by financial portfolio diversification. These phases of outside media ownership correspond to the stages of economic development in that country.The article finds that in rich countries, the ownership of media by industrial companies as a way to create political influence has been declining.

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Shareholder Activism and Voluntary Disclosure

Authors
Thomas Bourveau and Jordan Schoenfeld
Date
September 1, 2017
Format
Journal Article
Journal
Review of Accounting Studies

We examine the relation between shareholder activism and voluntary disclosure. An important consequence of voluntary disclosure is less adverse selection in the capital markets. One class of traders that finds less adverse selection unprofitable is activist investors who target mispriced firms whose valuations they can improve. Consistent with this idea, we find that managers issue earnings and sales forecasts more frequently when their firm is more at risk of attack by activist investors, and that these additional disclosures reduce the likelihood of becoming an activist's target.

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The Role and Impact of Reviewers on the Marketing Discipline

Authors
Donald Lehmann and Russell Winer
Date
September 1, 2017
Format
Journal Article
Journal
Journal of the Academy of Marketing Science

Since John Lynch’s presidential address at the 1998 annual meeting of the Association for Consumer Research (Lynch 1998), a large number of articles have appeared in the marketing literature pertaining to the review process in our field. Almost every new journal editor makes some statement about the standards and etiquette that reviewers should adopt during his or her editorial regime. For some good examples, see Shugan (2003), Desai (2011), and Kumar (2016). Other useful discussions of the review process also exist (e.g., Holbrook’s 1986 paper with seven suggestions for reviewers).

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Adolescents' Perceived Brand Deprivation Stress and Its Implications for Corporate and Consumer Well-Being

Authors
Carmen-Maria Albrecht, Nicola Stokburger-Sauer, David Sprott, and Donald Lehmann
Date
August 1, 2017
Format
Journal Article
Journal
Psychology and Marketing

Stress can impact various aspects of a person's well-being. While some researchers have suggested that consumption-related activities may cause stress, no research has yet explored such stress among vulnerable, younger consumers. To better understand this phenomenon, the concept of adolescents' perceived brand deprivation stress (BDS) is introduced as a state of tension perceived negatively by a young consumer when he or she does not have specific brands from a particular product category.

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Mobile Apps and Financial Decision Making

Authors
Bruce Carlin, Arna Olafsson, and Michaela Pagel
Date
July 1, 2017
Format
Journal Article
Journal
Review of Finance

We exploit the release of a mobile application for a financial aggregation platform to analyze how technology adoption changes consumer financial decision making. The app reduced the cost of accessing personal financial information, and we find that this led to a drop in non-sufficient fund (NSF) fees. Because of the manner in which these fees are incurred, this represents an unambiguous welfare improvement for users of the platform. The leading explanation for this result appears to be mistake avoidance due to easier access to information.

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Policy Intervention in Debt Renegotiation: Evidence from the Home Affordable Modification Program

Authors
Sumit Agarwal, Gene Amromin, Zahi Ben-David, Souphala Chomsisengphet, Tomasz Piskorski, and Amit Seru
Date
June 1, 2017
Format
Journal Article
Journal
Journal of Political Economy

We evaluate the effects of the 2009 Home Affordable Modification Program (HAMP) that provided intermediaries with sizeable financial incentives to renegotiate mortgages. HAMP increased intensity of renegotiations and prevented substantial number of foreclosures but reached just one-third of its targeted indebted households. This shortfall was in large part due to low renegotiation intensity of a few large intermediaries and was driven by intermediary-specific factors.

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