Publications

Research Summary

Current Research

I am interested in research on various topics in retail operations and supply chain management, including inventory management, product variety, distribution logistics, financial performance of retailers, and linking operational performance to... View Details

Article

Is it Better to Average Probabilities or Quantiles?

By: Kenneth C. Lichtendahl, Yael Grushka-Cockayne and Robert L. Winkler

We consider two ways to aggregate expert opinions using simple averages: averaging probabilities and averaging quantiles. We examine analytical properties of these forecasts and compare their ability to harness the wisdom of the crowd. In terms of location, the two... View Details

Keywords: Probability Forecasts; Quantile Forecasts; Expert Combination; Linear Opinion Pooling; Forecasting and Prediction

August 2014
Article

Mortgage Convexity

By: Samuel G. Hanson

Most home mortgages in the United States are fixed-rate loans with an embedded prepayment option. When long-term rates decline, the effective duration of mortgage-backed securities (MBS) falls due to heightened refinancing expectations. I show that these changes in MBS... View Details

Keywords: Mortgages; Interest Rates; Volatility

October 2011
Article

The Surprising Power of Age-Dependent Taxes

By: Matthew C. Weinzierl

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

Keywords: Taxation; Policy; Age; Income; Mathematical Methods; Welfare; United States

21 Jun 2010
Research & Ideas

Strategy and Execution for Emerging Markets

regulatory framework, and adjudication capability; but in the private sector there is also the need for a tremendous number of institutions and intermediaries such as information analyzers and advisors, transaction facilitators, adjudicators, credibility enhancers,... View Details

Keywords: by Martha Lagace

2022
Book

The Role of Innovation and Entrepreneurship in Economic Growth

By: Michael J. Andrews, Aaron Chatterji, Josh Lerner and Scott Stern

We live in an era in which innovation and entrepreneurship seem ubiquitous, particularly in regions like Silicon Valley, Boston, and the Research Triangle Park. But many metrics of economic growth, such as productivity growth and business dynamism, have been at best... View Details

Keywords: Productivity Growth; Production Technologies; Innovation and Invention; Entrepreneurship; Economic Growth; Competition; Organizational Design; Economic Slowdown and Stagnation

Register to Read

May 2021
Article

Ideology and Composition Among an Online Crowd: Evidence From Wikipedians

By: Shane Greenstein, Grace Gu and Feng Zhu

Online communities bring together participants from diverse backgrounds and often face challenges in aggregating their opinions. We infer lessons from the experience of individual contributors to Wikipedia articles about U.S. politics. We identify two factors that... View Details

Keywords: User Segregation; Online Community; Contested Knowledge; Collective Intelligence; Ideology; Bias; Wikipedia; Knowledge Sharing; Perspective; Government and Politics

12 Mar 2019
HBS Seminar

Giorgos Zervas, Boston University

2023
Working Paper

Estimating Productivity in the Presence of Spillovers: Firm-Level Evidence from the U.S. Production Network

By: Ebehi Iyoha

This paper examines the extent to which productivity gains are transmitted across U.S. firms through buyer-supplier relationships. Many empirical studies measure firm-to-firm spillovers using firm-level productivity estimates derived from control function approaches.... View Details

Keywords: Supply and Industry; Partners and Partnerships; Production

June 2018
Article

Video Content Marketing: The Making of Clips

By: Xuan Liu, Savannah Wei Shi, Thales S. Teixeira and Michel Wedel

Consumers have an increasingly wide variety of options available to entertain themselves. This poses a challenge for content aggregators who want to effectively promote their video content online through original trailers of movies, sitcoms, and video games. Marketers... View Details

Keywords: Film Entertainment; Marketing; Digital Marketing; Performance Effectiveness; Performance Improvement

2017
Working Paper

Nowcasting the Local Economy: Using Yelp Data to Measure Economic Activity

By: Edward L. Glaeser, Hyunjin Kim and Michael Luca

Can new data sources from online platforms help to measure local economic activity? Government datasets from agencies such as the U.S. Census Bureau provide the standard measures of economic activity at the local level. However, these statistics typically appear only... View Details

Keywords: Economy; Analytics and Data Science; Local Range; Social and Collaborative Networks

SSRN

December 1994 (Revised July 1996)
Case

USSR 1988, The: The Search for Growth

For decades after the revolution of 1917, Communist Party leaders claimed that the socialist economic system was superior to the capitalist system on both moral and economic grounds. By 1985, when Mikhail Gorbachev became general secretary of the Communist Party of the... View Details

Keywords: Economic Systems; Economic Growth; Government and Politics; Soviet Union

Educators

winter 2003
Article

Massively Categorical Variables: Revealing the Information in Zip Codes

We introduce the idea of a massively categorical variable, a variable such as zip code that takes on too many values to be treated in the standard manner, and show how to use it directly as explanatory variables in an econometric model. In an application of this... View Details

Keywords: Strategy; Analytics and Data Science; Behavior; Marketing; Standards; Finance

Research Summary

Delegation of Authority in Oligopoly

This paper studies the consequences of product-market competition on firms' decisions to delegate more or fewer decision-making responsibilities to managers. By simultaneously addressing the choice of both competitive actions and organizational design, the paper... View Details

Research Summary

Good cop, Bad Cop: Complementarities between Debt and Equity in Disciplining Management

Joint work with Alexander Gümbel, Saïd Business School and Lincoln College Oxford

In this paper we examine how the quantity of information generated about firm... View Details

Research Summary

Selection, Reallocation, and Spillover: Identifying the Sources of Gains from Multinational Production (with Maggie Chen)

By: Laura Alfaro

Quantifying the gains from multinational production has been a vital topic of economic research. Positive productivity gains are often attributed to knowledge spillover from multinational to domestic firms. An alternative, less stressed explanation is firm selection... View Details

Keywords: Gains From Multinational Production; Firm Selection; Knowledge Spillover

2011
Chapter

Knowledge Structures and Innovation: Useful Abstractions and Unanswered Questions

By: Gautam Ahuja and Elena Novelli

We examine the received research on organizational knowledge structures with a special focus on their link to innovation. We note that the literature has used the term knowledge structure to represent three quite distinct components of organizational knowledge: the... View Details

Keywords: Knowledge Management; Innovation and Invention

2017
Chapter

Empirical Evidence on the Behavior and Impact of Patent Trolls: A Survey

By: Lauren Cohen, Umit Gurun and Scott Duke Kominers

We survey the empirical literature on non-practicing entity (NPE) litigation behavior and its consequences. We document both aggregate trends and cross-sectional differences amongst various types of NPEs. Survey evidence illustrates a number of ways in which NPEs can... View Details

Keywords: Patent Trolls; NPEs; PAEs; Innovation; Patents; Lawsuits and Litigation; Innovation and Invention