Generalized Linear Model - Publications - Faculty & Research - Harvard Business School

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2024
Working Paper

Fiscal Policy under Convex Supply Curves

By: Shlok Goyal, Avi Lipton and Borui Niklas Zhu

Recent empirical evidence suggests that supply curves are convex. Supply curve convexity is at odds with conventional Phillips curves, which rely on an infinitely elastic underlying supply curve. This paper explores the effect of supply curve convexity on the... View Details

Keywords: Fiscal Stimulus; Fiscal Policy; Inflation; Inflation and Deflation; Macroeconomics; Policy; Mathematical Methods; United States

2016
Working Paper

Controlling Versus Enabling — Online Appendix

By: Andrei Hagiu and Julian Wright

Section 1 of this online appendix contains the proof of the technical Lemma (Lemma 2) used in the Proof of Lemma 1 in the main paper, which states that Ω* (.) is continuous and differentiable at R*. Section 2 provides the linear example with cost differences between... View Details

February 2024
Article

Pricing Power in Advertising Markets: Theory and Evidence

By: Matthew Gentzkow, Jesse M. Shapiro, Frank Yang and Ali Yurukoglu

Existing theories of media competition imply that advertisers will pay a lower price in equilibrium to reach consumers who multi-home across competing outlets. We generalize, extend, and test this prediction. We find that television outlets whose viewers watch more... View Details

Keywords: Television Entertainment; Advertising; Residency; Social Media; Price; Media; Age

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March 2008 (Revised April 2008)
Case

Sony PlayStation 3: Game Over?

Outlines the challenges faced by Sony with the launch of its PlayStation 3. Information on the 2006 and 2007 holiday seasons and the success of rival consoles is outlined. In addition, the case allows examining the costs and revenues associated with a business model... View Details

Keywords: Business Model; Games, Gaming, and Gambling; Cost; Revenue; Product Launch; Sales; Competition; Hardware; Entertainment and Recreation Industry

May 2016
Article

Matching with Slot-Specific Priorities: Theory

By: Scott Duke Kominers and Tayfun Sönmez

We introduce a two-sided, many-to-one matching with contracts model in which agents with unit demand match to branches that may have multiple slots available to accept contracts. Each slot has its own linear priority order over contracts; a branch chooses contracts by... View Details

Keywords: Matching With Contracts; Stability; Strategy-proofness; School Choice; Affirmative Action; Airline Seat Upgrades; Contracts; Market Design; Marketplace Matching; Balance and Stability

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May 2016
Case

The Inexorable Rise of Walmart? 1988—2016

By: John R. Wells and Gabriel Ellsworth

In October 2015, Walmart surprised investors by announcing that it expected flat sales growth for 2015 and growth of only 3% to 4% over the coming three years. Profits would also fall due to significant investments in people and technology. The company’s stock price... View Details

Keywords: Asda; Costco; David Glass; Convenience Stores; Discount Retailing; Dollar Stores; Doug McMillon; E-commerce; Online Retail; General Merchandise; Grocery; Lee Scott; Mike Duke; Multichannel Retailing; Omnichannel; Neighborhood Market; Sam Walton; Sam's Club; Store Formats; Supercenter; Supermarket; Warehouse Clubs; Merchandising; Walmart; Wal-Mart; Globalized Firms and Management; Competitive Strategy; Corporate Strategy; Growth and Development Strategy; Business Units; Business Divisions; Business Growth and Maturation; Business Model; Business Organization; For-Profit Firms; Film Entertainment; Television Entertainment; Banks and Banking; Price; Profit; Revenue; Food; Global Range; Cross-Cultural and Cross-Border Issues; Global Strategy; Business History; Compensation and Benefits; Employees; Human Capital; Labor Unions; Wages; Business or Company Management; Goals and Objectives; Management Succession; Brands and Branding; Product Positioning; Distribution; Supply Chain; Supply Chain Management; Public Ownership; Problems and Challenges; Labor and Management Relations; Strategy; Adaptation; Business Strategy; Competition; Competitive Advantage; Diversification; Expansion; Segmentation; Information Technology; Internet; Mobile Technology; Online Technology; Web; Web Sites; Retail Industry; Food and Beverage Industry; Distribution Industry; Banking Industry; United States; Arkansas; Bentonville

Article

Oracle Efficient Private Non-Convex Optimization

By: Seth Neel, Aaron Leon Roth, Giuseppe Vietri and Zhiwei Steven Wu

One of the most effective algorithms for differentially private learning and optimization is objective perturbation. This technique augments a given optimization problem (e.g. deriving from an ERM problem) with a random linear term, and then exactly solves it.... View Details

Keywords: Machine Learning; Algorithms; Objective Perturbation; Mathematical Methods

07 Oct 2015
HBS Seminar

Florian Ederer, Assistant Professor of Economics, Yale School of Management

February 2007
Case

Behavioral Finance at JP Morgan

By: Malcolm P. Baker and Aldo Sesia

Following a successful model in Europe, JP Morgan has introduced a set of five U.S. retail mutual funds with an investment philosophy and marketing strategy grounded in behavioral finance. The asset management group believes that understanding investor biases like... View Details

Keywords: Banks and Banking; Investment Funds; Behavioral Finance; Competitive Advantage; Asset Management; Marketing Strategy; Product Marketing; Customer Focus and Relationships; Banking Industry; Financial Services Industry; United States; Europe

13 Feb 2011
News

Long live fixed-rate 30-year mortgages!

2023
Article

Probabilistically Robust Recourse: Navigating the Trade-offs between Costs and Robustness in Algorithmic Recourse

By: Martin Pawelczyk, Teresa Datta, Johannes van-den-Heuvel, Gjergji Kasneci and Himabindu Lakkaraju

As machine learning models are increasingly being employed to make consequential decisions in real-world settings, it becomes critical to ensure that individuals who are adversely impacted (e.g., loan denied) by the predictions of these models are provided with a means... View Details

Keywords: AI and Machine Learning; Decision Choices and Conditions; Mathematical Methods

2023
Article

Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations.

By: Edward McFowland III and Cosma Rohilla Shalizi

Social influence cannot be identified from purely observational data on social networks, because such influence is generically confounded with latent homophily, that is, with a node’s network partners being informative about the node’s attributes and therefore its... View Details

Keywords: Causal Inference; Homophily; Social Networks; Peer Influence; Social and Collaborative Networks; Power and Influence; Mathematical Methods

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Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations

Social influence cannot be identified from purely observational data on social networks, because such influence is generically confounded with latent homophily, that is, with a node’s network partners being informative about the node’s attributes and therefore... View Details

August 2018 (Revised October 2020)
Case

Tailor Brands: Artificial Intelligence-Driven Branding

Using proprietary artificial intelligence technology, startup Tailor Brands set out to democratize branding by allowing small businesses to create their brand identities by automatically generating logos in just minutes at minimal cost with no branding or design skills... View Details

October 2018
Article

The Operational Value of Social Media Information

By: Ruomeng Cui, Santiago Gallino, Antonio Moreno and Dennis J. Zhang

While the value of using social media information has been established in multiple business contexts, the field of operations and supply chain management have not yet explored the possibilities it offers in improving firms' operational decisions. This study attempts to... View Details

Keywords: Machine Learning; Information; Sales; Forecasting and Prediction; Social Media

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Research Summary

Housing Markets with Contingencies

We model a real-estate market with three types of agents: regular buyers and sellers, and homeowners, who are agents who want to sell their current home only if they can buy another one. On the one hand, our model is a counterpart of the Abdulkadiroglu and Sonmez... View Details

October 1996 (Revised February 1997)
Case

Saturn Corporation in 1996

Briefly describes the competitive position of the Saturn Corp. in 1996. General Motors has recently announced plans to introduce a mid-sized model under the Saturn brand name. Also provides an update on Saturn's small-car position. View Details

Keywords: Product Positioning; Competitive Advantage; Auto Industry; United States

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March 2002 (Revised May 2002)
Case

Genzyme: Engineering the Market for Orphan Drugs

Genzyme has made money with external technology in orphan drug markets generally considered to be too small to be attractive to other drug companies. Now competition is entering these same markets, placing Genzyme's business model under new pressures. View Details

Keywords: Business Model; Information Technology; Market Entry and Exit; Biotechnology Industry; Pharmaceutical Industry

August 2013 (Revised November 2013)
Case

Ford vs. GM: The Evolution of Mass Production (A)

This case explores the very different paths taken by the Ford Motor Company and the General Motors Corporation in the first three decades of the twentieth century. Henry Ford's Model T was a car for the masses. After considerable experimentation, Ford Motor... View Details

Keywords: Innovation; Exploration; Dominant Design; Business Growth and Maturation; Business History; Innovation and Management; Innovation Strategy; Technological Innovation; Leading Change; Growth and Development Strategy; Product Positioning; Product Design; Product Development; Business Strategy; Corporate Strategy; Vertical Integration; Auto Industry; Manufacturing Industry; Michigan

Article

Reimagining the Balanced Scorecard for the ESG Era

By: Robert S. Kaplan and David McMillan

Companies are increasingly aware that their customers and society in general expect businesses to adopt and work towards social and environmental objectives as well as the traditional financial ones. This involves not only re-evaluating firms’ models but re-imagining... View Details

Keywords: ESG (Environmental, Social, Governance) Performance; Business Ecosystems; Balanced Scorecard; Adaptation; Business Model; Business and Stakeholder Relations

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