Publications

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May 16, 2019
Article

To Improve Food Inspections, Change the Way They're Scheduled

By: Maria Ibanez and Michael W. Toffel

Health inspections are an important tool to increase food safety, but there are still 48 million cases of food-borne illnesses and 128,000 hospitalizations every year in the United States. Our research finds that inspectors reported fewer health code violations as they... View Details

Keywords: Inspection; Scheduling; Food; Safety; Health; Governing Rules, Regulations, and Reforms; Performance Improvement

06 Sep 2004
What Do You Think?

How Do We Prepare for a World Without Cheap Oil?

recently a mere price "spike" in oil, we may be entering an era in which we have to adjust our thinking to prices that fluctuate around, say, $40 per barrel, a level long thought to be unsustainable even by OPEC, the... View Details

Keywords: by James Heskett

February 2024 (Revised February 2024)
Case

CLSA: Integrating ESG in Stock Valuation

By: Shirley Lu, Aaron Yoon and Billy Chan

In 2023, a senior financial analyst at the Hong Kong-based stock brokerage firm CLSA was surprised to see that, based on his calculations, the financial impact from climate risks on a major Indian cement manufacturing company’s projected earnings could be massive.... View Details

Keywords: Accounting; Corporate Governance; Analysis; Stocks; Valuation; Environmental Sustainability; Financial Services Industry; Industrial Products Industry; Hong Kong; China; India; Asia

March 2023
Article

Learning to Successfully Hire in Online Labor Markets

By: Marios Kokkodis and Sam Ransbotham

Hiring in online labor markets involves considerable uncertainty: which hiring choices are more likely to yield successful outcomes and how do employers adjust their hiring behaviors to make such choices? We argue that employers will initially explore the value of... View Details

Keywords: Selection and Staffing; Analysis; Decision Choices and Conditions

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Hiring in online labor markets involves considerable uncertainty: which hiring choices are more likely to yield successful outcomes and how do employers adjust their hiring behaviors to make such choices? We argue that employers will initially explore the value... View Details

23 Jan 2023
Research & Ideas

After High-Profile Failures, Can Investors Still Trust Credit Ratings?

During the financial crisis of 2008, major credit rating agencies faced sharp criticism for failing to recognize and warn of the risks of emerging instruments like mortgage-backed securities. Since that time, the results of a new study... View Details

Keywords: by Ben Rand

2020
Working Paper

Social Interactions in Pandemics: Fear, Altruism, and Reciprocity

By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi

In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google... View Details

Keywords: Social Interactions; Pandemics; Mobility; Cities; SIR Networks; Social Preferences; Social Planner; Targeted Policies; Health Pandemics; Interpersonal Communication; Behavior; Policy

2023
Working Paper

Insufficiently Justified Disparate Impact: A New Criterion for Subgroup Fairness

By: Neil Menghani, Edward McFowland III and Daniel B. Neill

In this paper, we develop a new criterion, "insufficiently justified disparate impact" (IJDI), for assessing whether recommendations (binarized predictions) made by an algorithmic decision support tool are fair. Our novel, utility-based IJDI criterion evaluates false... View Details

Keywords: AI and Machine Learning; Forecasting and Prediction; Prejudice and Bias

23 Sep 2009
Working Paper Summaries

Operational Failures and Problem Solving: An Empirical Study of Incident Reporting

Keywords: by Julia Adler-Milstein, Sara J. Singer & Michael W. Toffel; Health

07 Sep 2006
Working Paper Summaries

Optimal Value and Growth Tilts in Long-Horizon Portfolios

Keywords: by Jakub W. Jurek & Luis M. Viceira

24 Jun 2009
Working Paper Summaries

Don’t Just Survive—Thrive: Leading Innovation in Good Times and Bad

Keywords: by Lynda M. Applegate & J. Bruce Harreld

December 2019
Case

CME Group in 2019

By: José B. Alvarez, Forest Reinhardt and Natalie Kindred

Chicago-based CME Group is the world’s largest futures and options marketplace, with annual trading volume of over 4.8 billion contracts in 2018. This case is set in late 2019, as heightened perceptions of risk stemming from the U.S.-China trade war are driving record... View Details

Keywords: Financial Markets; Risk Management; Futures and Commodity Futures; Trade; Price; Competition; Risk and Uncertainty; Competitive Strategy; United States; China; Brazil

February 2024
Case

Tabby: Winning Consumers' Digital Wallets

By: Eva Ascarza and Fares Khrais

Hosam Arab (MBA 2009), cofounder and CEO of Tabby, a Saudi-based fintech startup, raised its Series D funding round in October 2023, four years after its inception, valuing it as a regional unicorn. Tabby's core product, a buy-now-pay-later (BNPL) service, allowed... View Details

Keywords: Business Model; Business Startups; Risk Management; Competitive Strategy; Expansion; Financial Services Industry; Technology Industry; Saudi Arabia

November 1974 (Revised May 1994)
Case

Science Technology Co.

By: Thomas R. Piper

The president of a medium-sized electronics company is evaluating the financial forecasts and proposed financing program submitted by the chief financial officer. The forecasts are prepared in constant dollars, on which basis the proposed financing plan seems... View Details

Keywords: Currency; Financial Strategy; Forecasting and Prediction; Inflation and Deflation; Risk and Uncertainty; Outcome or Result; Technology Industry; Electronics Industry

04 Jan 2011
Working Paper Summaries

The Learning Effects of Monitoring

Keywords: by Dennis Campbell, Marc Epstein & Francisco de Asis Martinez-Jerez; Entertainment & Recreation

2020
Chapter

Climate Change Is Going to Transform Where and How We Build

By: John D. Macomber

As fires, floods, and droughts increasingly threaten homes, businesses, and other institutions, climate risk has become financial risk. This implies that homeowners and investors have been making location decisions without properly pricing the cost of potential peril,... View Details

Keywords: Climate Change; Housing; Mortgages; Geographic Location; Real Estate Industry

04 Dec 2018
First Look

New Research and Ideas, December 4, 2018

structural adjustment followed. Today several structural issues and the threat of external risks continue to cast a shadow on its otherwise remarkable recovery. Purchase this... View Details

Keywords: Dina Gerdeman

July 1999 (Revised January 2000)
Case

Yahoo!: Business on Internet Time

By: Jan W. Rivkin and Jay R. Girotto

In the wake of major competitive moves, CEO Tim Koogle and his senior team at Yahoo!, an Internet portal, must decide whether and how to adjust their strategy. Following deals between AOL and Netscape, Excite and @Home, Infoseek and Disney, and Snap and NBS, Yahoo!... View Details

Keywords: Competitive Strategy; Growth and Development Strategy; Business Strategy; Organizational Structure; Industry Structures; Internet and the Web; Risk Management; Technological Innovation; Business or Company Management; Information Technology Industry; Web Services Industry

February 2010
Article

Global Currency Hedging

By: John Y. Campbell, Karine Serfaty-de Medeiros and Luis M. Viceira

Over the period 1975 to 2005, the US dollar (particularly in relation to the Canadian dollar) and the euro and Swiss franc (particularly in the second half of the period) have moved against world equity markets. Thus these currencies should be attractive to... View Details

Keywords: Currency; Equity; Financial Markets; International Finance; Investment Return; Globalized Markets and Industries; Risk Management

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