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Show Results For
- All HBS Web
(1,268)
- People (20)
- News (201)
- Research (696)
- Events (7)
- Multimedia (11)
- Faculty Publications (312)
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- 11 Dec 2007
- First Look
First Look: December 11, 2007
wise or lucky. His blend of new statistical methods and old common-sense reasoning helped him profit as the forecasting industry first developed. Irving Fisher, Economic Forecasting, and the Myth of the Business Cycle Author:Walter A.... View Details
Keywords: Martha Lagace
- October 2011
- Article
The Surprising Power of Age-Dependent Taxes
This article provides a new, empirically driven application of the dynamic Mirrleesian framework by studying a feasible and potentially powerful tax reform: age-dependent labor income taxation. I show analytically how age dependence improves policy on both the... View Details
Weinzierl, Matthew C. "The Surprising Power of Age-Dependent Taxes." Review of Economic Studies 78, no. 4 (October 2011): 1490–1518. (Also Harvard Business School Working Paper, No. 11-114, May 2011.)
- Research Summary
Overview
Professor Begenau’s research agenda is directed at better understanding how financial markets work and how they affect the real economy. She uses quantitative analysis to build both prescriptive and descriptive models concerning financial risk in banking, and she also... View Details
- 01 May 2024
- What Do You Think?
Have You Had Enough?
(Illustration created using image generated by Midjourney, an artificial intelligence tool.) Last month, I posted a column in HBS Working Knowledge titled, “What’s Enough to Make Us Happy?” Over the last few months, I’ve been asking... View Details
Keywords: by James Heskett
- Article
Distributionally Robust Optimization and Its Tractable Approximations
By: Joel Goh and Melvyn Sim
In this paper we focus on a linear optimization problem with uncertainties, having expectations in the objective and in the set of constraints. We present a modular framework to obtain an approximate solution to the problem that is distributionally robust and more... View Details
Goh, Joel, and Melvyn Sim. "Distributionally Robust Optimization and Its Tractable Approximations." Operations Research 58, no. 4 (pt.1) (July–August 2010): 902–917.
- December 2024
- Article
Respect for Improvements and Comparative Statics in Matching Markets
One of the oldest results in the theory of two-sided matching is the entry comparative static, which shows that under the Gale–Shapley deferred acceptance algorithm, adding a new agent to one side of the market makes all the agents on the other side weakly... View Details
Kominers, Scott Duke. "Respect for Improvements and Comparative Statics in Matching Markets." Journal of Mechanism and Institution Design 9, no. 1 (December 2024): 83–104.
- 20 Jun 2023
- Research & Ideas
Looking to Leave a Mark? Memorable Leaders Don't Just Spout Statistics, They Tell Stories
reform, Graeber says. “There is now a growing interest in understanding memory in economics,” Graeber says. “The question can be better understood as how people learn from qualitative information. If you think about it, it’s not that... View Details
Keywords: by Scott Van Voorhis
- 2015
- Working Paper
Configurations of Extremal Type II Codes
By: Noam D. Elkies and Scott Duke Kominers
We prove configuration results for extremal Type II codes, analogous to the configuration results of Ozeki and of the second author for extremal Type II lattices. Specifically, we show that for n∈{8,24,32,48,56,72,96} every extremal Type II code of length n is... View Details
Keywords: Mathematical Methods
Elkies, Noam D., and Scott Duke Kominers. "Configurations of Extremal Type II Codes." Working Paper, March 2015.
- 2014
- Article
Ascent-Descent Young Diagrams and Pattern Avoidance in Alternating Permutations
By: Ravi Jagadeesan
We investigate pattern avoidance in alternating permutations and an alternating analogue of Young diagrams. In particular, using an extension of Babson and West’s notion of shape-Wilf equivalence described in our recent paper (with N. Gowravaram), we generalize results... View Details
Jagadeesan, Ravi. "Ascent-Descent Young Diagrams and Pattern Avoidance in Alternating Permutations." #P3.9. Electronic Journal of Combinatorics 21, no. 3 (2014).
- 30 Jan 2024
- Research & Ideas
‘Intrinsic Joy’ Sparks Ideas Better than Cash
Columbia University. When AI, open source, and incentives collide The findings have implications for any kind of innovation drive stemming from crowdsourcing, a method of gathering information from large groups that has been around for... View Details
- 25 Apr 2023
- Op-Ed
How SHEIN and Temu Conquered Fast Fashion—and Forged a New Business Model
information technology to directly match consumer demand to dispersed production by a collection of factories in China. This method of reaching customers should inspire any business that provides products or services that come from many... View Details
- 2011
- Working Paper
The Impact of Horizontal Mergers and Acquisitions in Price Competition Models
The question of what impact mergers and acquisitions have on key equilibrium performance measures is fundamental to our understanding of competitive dynamics in an oligopolistic industry. We address these questions in the context of price competition models with... View Details
Keywords: Mergers and Acquisitions; Cost; Price; Profit; Duopoly and Oligopoly; Performance Efficiency; Mathematical Methods; Competition
Federgruen, Awi, and Margaret P. Pierson. "The Impact of Horizontal Mergers and Acquisitions in Price Competition Models." Harvard Business School Working Paper, No. 12-031, October 2011.
- 02 Sep 2014
- First Look
First Look: September 2
http://www.hbs.edu/faculty/Publication%20Files/SSRN%20-%20Org%20Sci%20Rewrite%20for%20ssrn_b75b2c22-40f6-430f-be8f-9797e71fe2ea.pdf September 2014 Journal of Economic Perspectives Management Practices, Relational Contracts and the Decline of View Details
Keywords: Sean Silverthorne
- 2021
- Article
Fair Algorithms for Infinite and Contextual Bandits
By: Matthew Joseph, Michael J Kearns, Jamie Morgenstern, Seth Neel and Aaron Leon Roth
We study fairness in linear bandit problems. Starting from the notion of meritocratic fairness introduced in Joseph et al. [2016], we carry out a more refined analysis of a more general problem, achieving better performance guarantees with fewer modelling assumptions... View Details
Joseph, Matthew, Michael J Kearns, Jamie Morgenstern, Seth Neel, and Aaron Leon Roth. "Fair Algorithms for Infinite and Contextual Bandits." Proceedings of the AAAI/ACM Conference on Artificial Intelligence, Ethics, and Society 4th (2021).
- March 2010
- Article
Matching with Preferences over Colleagues Solves Classical Matching
In this note, we demonstrate that the problem of "many-to-one matching with (strict) preferences over colleagues" is actually more difficult than the classical many-to-one matching problem, "matching without preferences over colleagues." We give an explicit reduction... View Details
Kominers, Scott Duke. "Matching with Preferences over Colleagues Solves Classical Matching." Games and Economic Behavior 68, no. 2 (March 2010): 773–780.
- 13 Jan 2003
- Research & Ideas
The Subconscious Mind of the Consumer (And How To Reach It)
product planning strategy? No matter how radical a new product is, it will always be perceived initially in terms of some frame of reference.— Gerald Zaltman A: The insights offered by methods that probe the unconscious mind are relevant... View Details
Keywords: by Manda Mahoney
- 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
Neel, Seth, Aaron Leon Roth, Giuseppe Vietri, and Zhiwei Steven Wu. "Oracle Efficient Private Non-Convex Optimization." Proceedings of the International Conference on Machine Learning (ICML) 37th (2020).
- 28 Jan 2019
- Research & Ideas
Forget Cash. Here Are Better Ways to Motivate Employees
Whillans co-wrote a recent article in Compensation & Benefits Review, “Winning the War for Talent: Modern Motivational Methods for Attracting and Retaining Employees,” with Anais Thibault-Landry of the Université du Québec à Montréal... View Details
Keywords: by Dina Gerdeman
- Article
Portfolio Value-at-Risk Optimization for Asymmetrically Distributed Asset Returns
By: Joel Goh, Kian Guan Lim, Melvyn Sim and Weina Zhang
We propose a new approach to portfolio optimization by separating asset return distributions into positive and negative half-spaces. The approach minimizes a newly-defined Partitioned Value-at-Risk (PVaR) risk measure by using half-space statistical information. Using... View Details
Goh, Joel, Kian Guan Lim, Melvyn Sim, and Weina Zhang. "Portfolio Value-at-Risk Optimization for Asymmetrically Distributed Asset Returns." European Journal of Operational Research 221, no. 2 (September 1, 2012): 397–406.
- February 2010
- Supplement
Marketing Analysis Toolkit: Market Size and Market Share Analysis (CW)
By: Thomas J. Steenburgh and Jill Avery
This Excel worksheet contains sample problems, prebuilt Excel models to run market sizing and market share analyses, and charts and graphs which help visualize the results. It is designed to accompany Marketing Analysis Tookit: Market Size and Market Share Analysis.... View Details