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All HBS Web
(1,695)
- Faculty Publications (502)
- November 2023
- Article
A Quantity-Driven Theory of Term Premia and Exchange Rates
We develop a model in which specialized bond investors must absorb shocks to the supply and demand for long-term bonds in two currencies. Since long-term bonds and foreign exchange are both exposed to unexpected movements in short-term interest rates, a shift in the...
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Greenwood, Robin, Samuel G. Hanson, Jeremy C. Stein, and Adi Sunderam. "A Quantity-Driven Theory of Term Premia and Exchange Rates." Quarterly Journal of Economics 138, no. 4 (November 2023): 2327–2389.
- October 2023 (Revised March 2024)
- Case
KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing
By: George Serafeim, Siko Sikochi and Namrata Arora
The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000...
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Keywords:
Africa;
Clean Tech;
Energy;
Sustainability;
Health;
Digital;
Carbon Credits;
Carbon Offsetting;
Market Design;
Regulation;
Climate Change;
Entrepreneurship;
Energy Industry;
Consumer Products Industry;
Africa
Serafeim, George, Siko Sikochi, and Namrata Arora. "KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing." Harvard Business School Case 124-022, October 2023. (Revised March 2024.)
- 2023
- Article
Digital Health Reimbursement Strategies of 8 European Countries and Israel: Scoping Review and Policy Mapping
By: Robin van Kessel, Divya Srivastava, Ilias Kyriopoulos, Giovanni Monti, David Novillo-Ortiz, Ran Milman, Wojciech Wilhelm Zhang-Czabanowski, Greta Nasi, Ariel Dora Stern, George Wharton and Elias Mossialos
Background: The adoption of digital health care within health systems is determined by various factors, including pricing and reimbursement. The reimbursement landscape for digital health in Europe remains underresearched. Although various emergency reimbursement...
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Keywords:
Technology Adoption;
Health Care and Treatment;
Cross-Cultural and Cross-Border Issues;
Price;
Health Industry;
Europe;
Israel
van Kessel, Robin, Divya Srivastava, Ilias Kyriopoulos, Giovanni Monti, David Novillo-Ortiz, Ran Milman, Wojciech Wilhelm Zhang-Czabanowski, Greta Nasi, Ariel Dora Stern, George Wharton, and Elias Mossialos. "Digital Health Reimbursement Strategies of 8 European Countries and Israel: Scoping Review and Policy Mapping." e49003. JMIR mHealth and uHealth 11 (2023).
- August 2023
- Case
Ripple 2023
By: David B. Yoffie, Andy Wu and Sarah von Bargen
This case covers Ripple’s events from 2020–2023. The focus of this case is Ripple’s 2023 victory over the SEC, which sued Ripple in 2020 claiming that they did not register their XRP coins as securities. After Ripple’s victory, CEO Garlinghouse faced numerous...
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Yoffie, David B., Andy Wu, and Sarah von Bargen. "Ripple 2023." Harvard Business School Case 724-372, August 2023.
- 2023
- Working Paper
The Imperfect Intermediation of Money-Like Assets
By: Jonathan Wallen and Jeremy C. Stein
We study supply-and-demand effects in the U.S. Treasury bill market by comparing the returns on T-bills to the administered policy rate on the Federal Reserve’s reverse repurchase (RRP) facility. In spite of the arguably more money-like properties of an investment in...
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Wallen, Jonathan, and Jeremy C. Stein. "The Imperfect Intermediation of Money-Like Assets." Working Paper, August 2023.
- Summer 2023
- Article
Do Policies to Increase Access to Treatment for Opioid Use Disorder Work?
By: Eric Barrette, Leemore S. Dafny and Karen Shen
Even among commercially insured individuals, opioid use disorder is undertreated in the United States: nearly half receive no treatment within six months of a new diagnosis. Using a difference-in-differences specification exploiting the extension of insurance parity...
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Keywords:
Opioid Treatment;
Medication-assisted Treatment;
Substance Use Disorder;
Private Insurance;
Insurance;
Health Care and Treatment
Barrette, Eric, Leemore S. Dafny, and Karen Shen. "Do Policies to Increase Access to Treatment for Opioid Use Disorder Work?" American Journal of Health Economics 9, no. 3 (Summer 2023): 297–330.
- June 2023 (Revised January 2024)
- Case
Siemens AG: A Private Equity Approach within an Industrial Corporation?
By: David J. Collis and Haisley Wert
In July 2022, Horst Kayser, Chairman of Siemens AG Portfolio Companies (POC), was reflecting on the advice he could offer Roland Busch, Chief Executive Officer of the parent company Siemens AG, about whether and how to operate a private equity-like approach inside the...
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Collis, David J., and Haisley Wert. "Siemens AG: A Private Equity Approach within an Industrial Corporation?" Harvard Business School Case 723-420, June 2023. (Revised January 2024.)
- April 5, 2023
- Article
We Need an Operation Warp Speed for Long COVID
By: Esther K. Choo and Scott Duke Kominers
With millions of people affected and at least $1 trillion of economic value at stake, long COVID is our next national health emergency.
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Keywords:
COVID;
COVID-19;
COVID-19 Pandemic;
Scientific Research;
Policy;
Health Policy;
Innovation;
Science;
Public Finance;
Public Health;
Health Disorders;
Health Care and Treatment;
Human Capital
Choo, Esther K., and Scott Duke Kominers. "We Need an Operation Warp Speed for Long COVID." Scientific American (website) (April 5, 2023).
- March 2023
- Supplement
Allianz Türkiye (C): Managing the 2017 Hail Storm
By: John D. Macomber and Fares Khrais
Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe...
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Keywords:
Insurance And Reinsurance;
Natural Disasters;
Turkey;
Insurance;
Climate Change;
Analytics and Data Science;
Insurance Industry;
Financial Services Industry;
Turkey
Macomber, John D., and Fares Khrais. "Allianz Türkiye (C): Managing the 2017 Hail Storm." Harvard Business School Supplement 223-084, March 2023.
- March 2023 (Revised April 2024)
- Case
Allianz Türkiye: Adapting to Climate Change
By: John D. Macomber and Fares Khrais
Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe...
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Keywords:
Insurance And Reinsurance;
Natural Disasters;
Turkey;
Insurance;
Climate Change;
Analytics and Data Science;
Insurance Industry;
Financial Services Industry;
Turkey
Macomber, John D., and Fares Khrais. "Allianz Türkiye: Adapting to Climate Change." Harvard Business School Case 223-074, March 2023. (Revised April 2024.)
- March 2023
- Article
Not from Concentrate: Collusion in Collaborative Industries
By: Jordan M. Barry, John William Hatfield, Scott Duke Kominers and Richard Lowery
The chief principle of antitrust law and theory is that reducing market concentration—having more, smaller firms instead of fewer, bigger ones—reduces anticompetitive behavior. We demonstrate that this principle is fundamentally incomplete.
In many... View Details
In many... View Details
Keywords:
Antitrust;
Antitrust Law;
Antitrust Theory;
Law And Economics;
Collusion;
Collaboration;
Collaborative Industries;
Regulation;
"Repeated Games";
IPOs;
Initial Public Offerings;
Underwriters;
Real Estate;
Real Estate Agents;
Realtors;
Syndicated Markets;
Syndication;
Brokers;
Market Concentration;
Competition;
Law;
Economics;
Collaborative Innovation and Invention;
Governing Rules, Regulations, and Reforms;
Game Theory;
Initial Public Offering
Barry, Jordan M., John William Hatfield, Scott Duke Kominers, and Richard Lowery. "Not from Concentrate: Collusion in Collaborative Industries." Iowa Law Review 108, no. 3 (March 2023): 1089–1148.
- February 2023 (Revised May 2023)
- Case
CalPERS Private Equity 2.0
By: Josh Lerner, John D. Dionne and Alys Ferragamo
Yup Kim, the Head of Investments, Private Equity at the California Public Employees’ Retirement System (CalPERS), reflected on the pension fund’s private equity strategy. In July of 2022, the fund was in the midst of a multi-year turnaround strategy with the goal to...
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Lerner, Josh, John D. Dionne, and Alys Ferragamo. "CalPERS Private Equity 2.0." Harvard Business School Case 223-048, February 2023. (Revised May 2023.)
- February 2023
- Article
A Different Framework to Achieve Universal Coverage in the U.S.
By: Katherine Baicker, Amitabh Chandra and Mark Shepard
This JAMA Forum discusses alternative ways to achieve universal coverage in the US such as administrative simplification in the Affordable Care Act plans to increase enrollment, having a basic policy that would be available to everyone, and options for supplemental...
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Baicker, Katherine, Amitabh Chandra, and Mark Shepard. "A Different Framework to Achieve Universal Coverage in the U.S." e230187. JAMA Health Forum 4, no. 2 (February 2023).
- 2023
- Working Paper
Crowding in Private Quality: The Equilibrium Effects of Public Spending in Education
By: Tahir Andrabi, Natalie Bau, Jishnu Das, Asim Ijaz Khwaja and Naureen Karachiwalla
We estimate the equilibrium effects of a public-school grant program administered through school councils in Pakistani villages with multiple public and private schools and clearly defined catchment boundaries. The program was randomized at the village-level, allowing...
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Andrabi, Tahir, Natalie Bau, Jishnu Das, Asim Ijaz Khwaja, and Naureen Karachiwalla. "Crowding in Private Quality: The Equilibrium Effects of Public Spending in Education." NBER Working Paper Series, No. 30929, February 2023.
- February 2023
- Article
Increasing the Demand for Workers with a Criminal Record
By: Zoë Cullen, Will Dobbie and Mitchell Hoffman
State and local policies increasingly restrict employers’ access to criminal records, but without
addressing the underlying reasons that employers may conduct criminal background checks.
Employers may thus still want to ask about a job applicant’s criminal record...
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Cullen, Zoë, Will Dobbie, and Mitchell Hoffman. "Increasing the Demand for Workers with a Criminal Record." Quarterly Journal of Economics 138, no. 1 (February 2023): 103–150.
- 2023
- Working Paper
Life After Death: A Field Experiment with Small Businesses on Information Frictions, Stigma, and Bankruptcy
By: Shai Benjamin Bernstein, Emanuele Colonnelli, Mitchell Hoffman and Benjamin Iverson
In a randomized control trial (RCT) with U.S. small businesses, we document that a large share of firms are not well-informed about bankruptcy. Many assume that bankruptcy necessarily entails the death of a business and do not know about Chapter 11 bankruptcy, where...
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Bernstein, Shai Benjamin, Emanuele Colonnelli, Mitchell Hoffman, and Benjamin Iverson. "Life After Death: A Field Experiment with Small Businesses on Information Frictions, Stigma, and Bankruptcy." NBER Working Paper Series, No. 30933, February 2023.
- 2023
- Working Paper
Achieving Universal Health Insurance Coverage in the United States: Addressing Market Failures or Providing a Social Floor?
By: Katherine Baicker, Amitabh Chandra and Mark Shepard
The United States spends substantially more on health care than most developed countries, yet leaves a greater share of the population uninsured. We suggest that incremental insurance expansions focused on addressing market failures will propagate inefficiencies and...
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Baicker, Katherine, Amitabh Chandra, and Mark Shepard. "Achieving Universal Health Insurance Coverage in the United States: Addressing Market Failures or Providing a Social Floor?" NBER Working Paper Series, No. 30854, January 2023.
- 2022
- Working Paper
Credit and the Family: The Economic Consequences of Closing the Credit Gap of U.S. Couples
By: Olivia S. Kim
Closing disparities in credit access between spouses can help reduce consumption inequality in the household. The 2013 reversal of the Truth-in-Lending Act increased the borrowing capacity of secondary earners in equitable-distribution states but not in...
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Keywords:
Household;
Credit;
Equality and Inequality;
Income;
Policy;
Family and Family Relationships
Kim, Olivia S. "Credit and the Family: The Economic Consequences of Closing the Credit Gap of U.S. Couples." Working Paper, December 2022.
- December 2022
- Article
The Contribution of Price Growth to Pharmaceutical Revenue Growth in the United States: Evidence from Medicines Sold in Retail Pharmacies
By: Pragya Kakani, Michael Chernew and Amitabh Chandra
Context: To what extent does pharmaceutical revenue growth depend on new medicines versus increasing prices for existing medicines? Moreover, does using list prices, as is commonly done, instead of prices net of confidential rebates offered by manufacturers, which are...
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Kakani, Pragya, Michael Chernew, and Amitabh Chandra. "The Contribution of Price Growth to Pharmaceutical Revenue Growth in the United States: Evidence from Medicines Sold in Retail Pharmacies." Journal of Health Politics, Policy and Law 47, no. 6 (December 2022): 629–648.
- 2022
- Article
The Effects of Public and Private Equity Markets on Firm Behavior
By: Shai Bernstein
In this article, I review the theoretical and empirical literature on the effects of public and private equity markets on firm behavior, emphasizing the consequences that emerge from disclosure requirements, ownership concentration, and degree of firm standardization....
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Keywords:
Corporate Finance And Governance;
Financing Policy;
Commercialization;
Capital Markets;
Private Equity;
Public Equity;
Venture Capital;
Innovation and Invention;
Cost of Capital
Bernstein, Shai. "The Effects of Public and Private Equity Markets on Firm Behavior." Annual Review of Financial Economics 14 (2022): 295–318.