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- 2020
- Chapter
Reserve Accumulation, Sovereign Debt, and Exchange Rate Policy
By: Laura Alfaro and Fabio Kanczuk
In the past decade, foreign participation in local-currency bond markets in emerging countries increased dramatically. Additionally, emerging countries are increasingly deviating from inflation targeting regimes, managing their exchange rate and engaging in... View Details
- 2021
- Working Paper
Time and the Value of Data
By: Ehsan Valavi, Joel Hestness, Newsha Ardalani and Marco Iansiti
Managers often believe that collecting more data will continually improve the accuracy of their machine learning models. However, we argue in this paper that when data lose relevance over time, it may be optimal to collect a limited amount of recent data instead of... View Details
- August 2020 (Revised March 2021)
- Case
Migros Turkey: Scaling Online Operations (A)
By: Antonio Moreno and Gamze Yucaoglu
The case opens in November 2019 as Ozgur Tort and Mustafa Bartin, CEO and chief large-format and online retail officer of Migros Ticaret A.S. (Migros), Turkey’s oldest and one of its largest supermarket chains, are contemplating what the best fulfillment format and... View Details
- 2023
- Working Paper
When Should Public Programs Be Privately Administered? Theory and Evidence from the Paycheck Protection Program
By: Alexander Bartik, Zoë B. Cullen, Edward L. Glaeser, Michael Luca, Christopher Stanton and Adi Sunderam
What happens when public resources are allocated by private companies whose objectives may be
imperfectly aligned with policy goals? We study this question in the context of the Paycheck
Protection Program (PPP), which relied on private banks to disburse aid to small... View Details
- 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
- 2020
- Working Paper
Best Ideas
By: Miguel Antón, Randolph B. Cohen and Christopher Polk
We find that the stocks in which active mutual fund or hedge fund managers display the most conviction towards ex-ante, their “Best ideas,” outperform the market, as well as the other stocks in those managers’ portfolios, by approximately 2.8 to 4.5 percent per year,... View Details
- July 3, 2020
- Article
Delivery Apps Need to Start Treating Suppliers As Partners
By: Scott Duke Kominers and Ian Macomber
Home delivery has shifted from a luxury service aimed at young urban professionals to a core part of many businesses, which is used by almost everyone. That upheaval has strained capacity of many delivery services and changed how they relate to the suppliers that they... View Details
- 2022
- Working Paper
Optimal Illiquidity
By: John Beshears, James J. Choi, Christopher Clayton, Christopher Harris, David Laibson and Brigitte C. Madrian
We calculate the socially optimal level of illiquidity in an economy populated by households with taste shocks and naive present bias. The government chooses mandatory contributions to accounts, each witha different pre-retirement withdrawal penalty. Collected... View Details
Keywords: Illiquidity; Commitment; Flexibility; Savings; Social Security; Retirement; Government Legislation; Taxation; Saving
- June 2020 (Revised January 2023)
- Case
Shinola Detroit: Optimizing Product Line Breadth
By: Robert J. Dolan
- June 2020
- Case
RBC: Transforming Transformation (A)
By: Ethan Bernstein, Francesca Gino and Aldo Sesia
In 2017, the Royal Bank of Canada (RBC), a Canadian financial icon, mandated a swat team of “enablers of collaboration” (their job description) to support the personal and commercial bank in the enterprise-wide RBC Cultural Transformation initiative. Historically,... View Details
Keywords: Service Delivery; Information Technology; Transformation; Change Management; Collaborative Innovation and Invention; Innovation and Management; Decision Making; Human Resources; Management Systems; Organizational Design; Organizational Structure; Groups and Teams; Management Teams; Banking Industry; Financial Services Industry; Canada
- June 2020
- Supplement
RBC: Transforming Transformation (B)
By: Ethan Bernstein, Francesca Gino and Aldo Sesia
In 2017, the Royal Bank of Canada (RBC), a Canadian financial icon, mandated a swat team of “enablers of collaboration” (their job description) to support the personal and commercial bank in the enterprise-wide RBC Cultural Transformation initiative. Historically,... View Details
Keywords: Service Delivery; Information Technology; Transformation; Change Management; Collaborative Innovation and Invention; Innovation and Management; Decision Making; Human Resources; Management Systems; Organizational Design; Organizational Structure; Groups and Teams; Management Teams; Banking Industry; Financial Services Industry; Canada
- June 2020
- Article
Understanding Different Approaches to Benefit-Based Taxation
By: Robert Scherf and Matthew C. Weinzierl
The normative principle of benefit-based taxation has exerted substantial influence on many areas of public finance, but it has been largely set aside in the modern theoretical approach to optimal income taxation, where welfarist objectives dominate. A prerequisite for... View Details
- May 2020
- Article
Inventory Auditing and Replenishment Using Point-of-Sales Data
By: Achal Bassamboo, Antonio Moreno and Ioannis Stamatopoulos
Spoilage, expiration, damage due to employee/customer handling, employee theft, and customer shoplifting usually are not reflected in inventory records. As a result, records often report phantom inventory, i.e., units of good not available for sale. We derive an... View Details
- 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
- April 2020 (Revised August 2021)
- Case
Singapore: 'Facing Challenges Together'
Since its expulsion from Malaysia in 1965, Singapore had transformed itself from a third world island nation into a vibrant city-state with one of the highest levels of GDP per capita in the world. However, sluggish demand among Singapore's major trade partners began... View Details
Keywords: Savings; Productivity Growth; Productivity; Economic Institutions; Economic Development; Government And Business; Government Policy; Economic Policy; Country Analysis; Investment And Savings; Institutions; Economic Growth; Macroeconomics; Development Economics; Investment; Government and Politics; Trade; Policy; Research and Development; Analysis; Economics; Business and Government Relations; Asia; Singapore; Southeast Asia
- 2020
- Working Paper
Sticky Capital Controls
By: Miguel Acosta-Henao, Laura Alfaro and Andres Fernandez
There is much ongoing debate on the merits of capital controls as effective policy instruments. The differing perspectives are due in part to a lack of empirical studies that look at the intensive margin of controls, which in turn has prevented a quantitative... View Details
- 2020
- Working Paper
The Effects of Hierarchy on Learning and Performance in Business Experimentation
By: Sourobh Ghosh, Stefan Thomke and Hazjier Pourkhalkhali
Do senior managers help or hurt business experiments? Despite the widespread adoption of business experiments to guide strategic decision-making, we lack a scholarly understanding of what role senior managers play in firm experimentation. Using proprietary data of live... View Details
- 2021
- Working Paper
Impact Investing: A Theory of Financing Social Enterprises
By: Benjamin N. Roth
I present a model of financing social enterprises to delineate the role of impact investors relative to “pure” philanthropists. I characterize the optimal scale and structure of a social enterprise when financed by grants, and when financed by investments. Impact... View Details
- 2020
- Chapter
Team Reflexivity
By: Michaéla Schippers, Amy C. Edmondson and Michael A. West
Many teams face the problem of process loss, or suboptimal functioning, with sometimes serious consequences, such as medical errors. Team reflexivity—a deliberate process of discussing team goals, processes, or outcomes—can aid in optimizing team performance. In the... View Details
- 2020
- Article
Fast Exact Matrix Completion: A Unified Optimization Framework for Matrix Completion
By: Dimitris Bertsimas and Michael Lingzhi Li
We formulate the problem of matrix completion with and without side information as a non-convex optimization problem. We design fastImpute based on non-convex gradient descent and show it converges to a global minimum that is guaranteed to recover closely the... View Details
Keywords: Mathematical Methods