Publications

November–December 2015
Article

Active Postmarketing Drug Surveillance for Multiple Adverse Events

By: Joel Goh, Margrét V. Bjarnadóttir, Mohsen Bayati and Stefanos A. Zenios

Postmarketing drug surveillance is the process of monitoring the adverse events of pharmaceutical or medical devices after they are approved by the appropriate regulatory authorities. Historically, such surveillance was based on voluntary reports by medical... View Details

Keywords: Drug Surveillance; Health Care; Stochastic Models; Queueing; Diffusion Approximation; Brownian Motion; Health Care and Treatment; Analytics and Data Science; Analysis

06 Sep 2004
Research & Ideas

The Innovator’s Battle Plan

technology so it could be useful to Western Union's most profitable real-time long-distance data customers. When an existing firm tries to insert a product or service with disruptive potential into its... View Details

Keywords: by Clayton M. Christensen, Scott D. Anthony & Erik A. Roth

12 Mar 2012
Research & Ideas

Crowded at the Top: The Rise of the Functional Manager

electronics and high-end data storage systems, for example, it makes sense for each business unit to have its own marketing chief, housed in that unit. But if the firm decides to focus solely on the high-end... View Details

Keywords: by Carmen Nobel

2023
Article

Which Models Have Perceptually-Aligned Gradients? An Explanation via Off-Manifold Robustness

By: Suraj Srinivas, Sebastian Bordt and Himabindu Lakkaraju

One of the remarkable properties of robust computer vision models is that their input-gradients are often aligned with human perception, referred to in the literature as perceptually-aligned gradients (PAGs). Despite only being trained for classification, PAGs cause... View Details

Keywords: AI and Machine Learning; Mathematical Methods

March 1998
Article

An Assessment of the Performance of Indian State-Owned Enterprises

By: Gautam Ahuja and Sumit K. Majumdar

We examine the determinants of performance of 68 Indian state-owned enterprises in the manufacturing sector for a five-year period: 1987 to 1991. Relative performance is determined using data envelopment analysis, with variations in performance patterns subsequently... View Details

Keywords: State-owned Enterprises; Economic Reform; Efficiency Analysis; Performance Efficiency; Privatization; Microeconomics; State Ownership; Manufacturing Industry; India

Purchase

2011
Working Paper

What Do Development Banks Do? Evidence from Brazil, 2002-2009

By: Sergio G. Lazzarini, Aldo Musacchio, Rodrigo Bandeira-de-Mello and Rosilene Marcon

While some authors view development banks as an important tool to alleviate capital constraints in scarce credit markets and unlock productive investments, others see those banks as conduits of cheap loans to politically connected firms that could obtain capital... View Details

Keywords: Cost of Capital; Credit; Equity; Banks and Banking; Financing and Loans; Investment; Government and Politics; Data and Data Sets; Resource Allocation; Markets; Performance; Banking Industry; Brazil

August 2007 (Revised June 2020)
Case

Trouble with a Bubble

By: Tom Nicholas

Examines technology, firm performance, and the stock market during the 1929 Great Crash and the Great Depression of the 1930s. The 1920s was an extraordinary period of technological progress marked by a strong run-up in stock market prices. Firms invested heavily in... View Details

Keywords: Bubble; Stock Market; Great Depression; Irving Fisher; Information Technology; Organizational Change and Adaptation; History; Financial Markets; Performance; Labor and Management Relations; Equity; Financial Crisis; Innovation and Invention; United States

Educators

Purchase

23 Dec 2008
First Look

First Look: December 23, 2008

high-skilled immigrants on U.S. technology formation. Specifically, we use reduced-form specifications that exploit large changes in the H-1B visa program. Fluctuations in H-1B admissions levels significantly influence the rate of Indian... View Details

Keywords: Martha Lagace

December 2020
Article

Stock Market Returns and Consumption

By: Marco Di Maggio, Amir Kermani and Kaveh Majlesi

This paper employs Swedish data containing security level information on households' stock holdings to investigate how consumption responds to changes in stock market returns. We exploit households’ portfolio weights in previous years as an instrument for actual... View Details

Keywords: Capital Gain; Dividend Income; Consumption; Near-rational Behavior; Investment Return; Household; Spending; Behavior

SSRN

16 Apr 2001
Research & Ideas

Breaking the Code of Change

tenure of Dunlap's predecessor, Phillip Lippincott, Scott had struggled to improve its operational effectiveness at the plant level by working on process improvement and launching an effort to work cooperatively with its union. In the... View Details

Keywords: by Michael Beer & Nitin Nohria

January 2003 (Revised November 2005)
Case

Endeavor-Determining A Growth Strategy

By: William A. Sahlman and Michael J. Roberts

Describes the progress of a nonprofit organization, Endeavor, focused on nurturing entrepreneurship in emerging markets. At the time of the case, it has successfully expanded to five Latin American countries and is contemplating the next phase in its growth.... View Details

Keywords: Motivation and Incentives; Nonprofit Organizations; Development Economics; Entrepreneurship; Emerging Markets; Policy; Growth and Development Strategy

Educators

Purchase

26 Oct 2015
News

Exposure To Harmful Workplace Practices Could Account For Inequality In Life Spans Across Different Demographic Groups

2011
Article

Scalable Detection of Anomalous Patterns With Connectivity Constraints

By: Skyler Speakman, Edward McFowland III and Daniel B. Neill

We present GraphScan, a novel method for detecting arbitrarily shaped connected clusters in graph or network data. Given a graph structure, data observed at each node, and a score function defining the anomalousness of a set of nodes, GraphScan can efficiently and... View Details

Keywords: Biosurveillance; Event Detection; Graph Mining; Scan Statistics; Spatial Scan Statistic

August 2013
Article

Corporate Ownership Structure and the Choice Between Bank Debt and Public Debt

By: Chen Lin, Yue Ma, Paul Malatesta and Yuhai Xuan

This paper examines the relation between a borrowing firm's ownership structure and its choice of debt source using a novel, hand-collected data set on corporate ownership, control, and debt structures for 9,831 firms in 20 countries from 2001 to 2010. We find that the... View Details

Keywords: Governance; Ownership; Borrowing and Debt; Corporate Finance