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Faculty Publications

Research published by Kellogg faculty and featured in top tier peer-reviewed journals

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View books published by Kellogg faculty, read reviews and purchase online

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Order cases developed by Kellogg faculty and taught in the Kellogg classroom

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    Working Papers
    The following represent pre-publication versions of faculty research. Working Papers will often appear in final published form in scholarly, peer-reviewed journals.


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    YearTitle
    2018
    AComparisonofApproachestoAdvertisingMeasurementEvidencefromBigFieldExperimentsatFacebook
    A Comparison of Approaches to Advertising Measurement: Evidence from Big Field Experiments at Facebook
    Gordon, Brett, Florian Zettelmeyer and Dan Chapsky. 2018. A Comparison of Approaches to Advertising Measurement: Evidence from Big Field Experiments at Facebook.
    Abstract                                                                    Link

    Measuring the causal effects of digital advertising remains challenging despite the availability of granular data. Unobservable factors make exposure endogenous, and advertising's effect on outcomes tends to be small. In principle, these concerns could be addressed using randomized controlled trials (RCTs). In practice, few online ad campaigns rely on RCTs, and instead use observational methods to estimate ad effects. We assess empirically whether the variation in data typically available in the advertising industry enables observational methods to recover the causal effects of online advertising. This analysis is of particular interest because of recent, large improvements in observational methods for causal inference (Imbens & Rubin,2015). Using data from 15 US advertising experiments at Facebook comprising 500 million user-experiment observations and 1.6 billion ad impressions, we contrast the experimental results to those obtained from multiple observational models. The observational methods often fail to produce the same effects as the randomized experiments, even after conditioning on extensive demographic and behavioral variables. We also characterize the incremental explanatory power our data would require to enable observational methods to successfully measure advertising effects. Our findings suggest that commonly used observational approaches based on the data usually available in the industry often fail to accurately measure the true effect of advertising.
    2018
    ADoseofManagedCareControllingDrugSpendinginMedicaid
    A Dose of Managed Care: Controlling Drug Spending in Medicaid
    Dranove, David, Christopher Ody and Amanda Starc. 2018. A Dose of Managed Care: Controlling Drug Spending in Medicaid.
    Abstract                                                                    Link

    Effectively designed market mechanisms may reduce growth in health care spending. In this paper, we study the impact of privatizing the delivery of Medicaid benefits on drug prices and utilization. Exploiting granular data, we find that drug spending would fall by 22.4 percent if the drug benefit was fully administered by Medicaid Managed Care Organizations (MCOs), largely through lower point-of-sale prices and greater generic usage. The effects are driven by MCOs’ ability to design drug benefits and steer consumers toward lower cost drugs and pharmacies. By contrast, MCOs do not appear to skimp on performance by reducing overall drug consumption.
    2018
    AmbidextrousDirectorsandTheirOutsizedInfluenceonFirmStrategy
    Ambidextrous Directors and Their Outsized Influence on Firm Strategy
    Lungeanu, Razvan and Edward Zajac. 2018. Ambidextrous Directors and Their Outsized Influence on Firm Strategy.
    2018
    AMeetingoftheMindsCognitiveCongruenceinanAlliancePortfolioforNewProductIntroductionsintheSoftwareIndustry
    A Meeting of the Minds: Cognitive Congruence in an Alliance Portfolio for New Product Introductions in the Software Industry
    Rhee, Seung-Hyun, William Ocasio and Edward Zajac. 2018. A Meeting of the Minds: Cognitive Congruence in an Alliance Portfolio for New Product Introductions in the Software Industry.
    2018
    Atheoryofthemortgageratepass-through
    A theory of the mortgage rate pass-through
    Milbradt, Konstantin, David Berger and Fabrice Tourre. 2018. A theory of the mortgage rate pass-through.
    2018
    AttachmentsecuritypromotesintergroupnegotiationThemediatingroleofcommoninterest
    Attachment security promotes intergroup negotiation: The mediating role of common interest
    Thompson, Leigh, S J Kwon and S Lee. 2018. Attachment security promotes intergroup negotiation: The mediating role of common interest.
    2018
    CausalEcologicalInferences
    Causal Ecological Inferences
    Spenkuch, Jorg. 2018. Causal Ecological Inferences.
    Link
    2018
    ChainsofOpportunityRevisitedEvidencefromAdministrativeData
    Chains of Opportunity Revisited: Evidence from Administrative Data
    Bianchi, Nicola, Giulia Bovini, Jin Li, Matteo Paradisi and Michael Powell. 2018. Chains of Opportunity Revisited: Evidence from Administrative Data.
    2018
    CollaborativebyDesignHowMatrixFirmsSeeDoAlliances
    Collaborative by Design? How Matrix Firms See/Do Alliances
    Stych, Maxim, Franz Wohlgezogen and Edward Zajac. 2018. Collaborative by Design? How Matrix Firms See/Do Alliances.
    2018
    CollectiveChoiceinDynamicPublicGoodProvision
    Collective Choice in Dynamic Public Good Provision
    Bowen, Renee, George Georgiadis and Nicolas S Lambert. 2018. Collective Choice in Dynamic Public Good Provision.
    Abstract                                                                    Link

    Two heterogeneous agents contribute over time to a joint project, and collectively decide its scope. A larger scope requires greater cumulative effort and delivers higher benefits upon completion. We show that the efficient agent prefers a smaller scope, and preferences are time-inconsistent: as the project progresses, the efficient (inefficient) agent's preferred scope shrinks (expands). We characterize the equilibrium outcomes under dictatorship and unanimity, with and without commitment. We find that an agent's degree of efficiency is a key determinant of control over project scopes. From a welfare perspective, it may be desirable to allocate decision rights to the inefficient agent.
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