Publications

Research Summary

Overcoming Large-N, Small-T Issues in Asset Pricing Tests

The large-N, small-T (i.e. large cross-section, short time series) nature of our asset data presents serious estimation problems for empirical asset pricing. In response, the literature tests asset pricing models against 10-25 test assets or portfolios. A... View Details

February 2001
Article

Sequential Testing in Product Development

By: S. Thomke and David E. Bell

Keywords: Research and Development; Product

Find at Harvard

March 2006 (Revised July 2006)
Supplement

Drug Testing in Nigeria (B)

By: Debora L. Spar

January 2006 (Revised July 2006)
Case

Drug Testing in Nigeria (A)

By: Debora L. Spar

In 1996, a meningitis epidemic swept across Nigeria. Thousands of children were struck and, lacking appropriate medicine, were liable to die from the disease. Doctors at Pfizer had an antibiotic that could probably save most of these children's lives. The drug was new,... View Details

Keywords: Risk and Uncertainty; Health Pandemics; Health Testing and Trials; Developing Countries and Economies; Pharmaceutical Industry; Nigeria

Educators

03 Dec 2013
News

PISA Test Results For U.S. Students Are 'Sobering'

October 1988 (Revised April 1993)
Case

Seligram, Inc.: Electronic Testing Operations

Explores the obsolescence of a cost system when technology changes. In particular, it asks students to increase the number of cost center and allocation bases. The firm moves from a one-center, direct labor-hour system to a three-center, direct labor-hour and... View Details

Keywords: Technology; Cost Accounting; Change Management

Educators

March 2005
Article

Testing for Agglomeration and Dispersion

By: Marc Rysman and Shane Greenstein

Find at Harvard

2013
Working Paper

Testing Coleman's Social-Norm Enforcement Mechanism: Evidence from Wikipedia

By: Mikolaj J. Piskorski and Andreea Gorbatai

Since Durkheim, sociologists have believed that dense network structures lead to fewer norm violations. Coleman (1990) proposed one mechanism generating this relationship and argued that dense networks provide an opportunity structure to reward those who punish norm... View Details

Keywords: Governance Compliance; Governance Controls; Governing Rules, Regulations, and Reforms; Information Publishing; Social and Collaborative Networks; Social Issues; Societal Protocols

SSRN

05 Jul 2006
Working Paper Summaries

Empirical Tests of Information Aggregation

Keywords: by Pai-Ling Yin; Technology; Web Services

February 1977 (Revised January 1982)
Case

Bay Area Test Instruments, Inc.

Find at Harvard

15 Sep 2008
News

Teaching To The New Test

June 2023
Article

National Customer Orientation: An Empirical Test across 112 Countries

By: Ofer Mintz, Imran S. Currim and Rohit Deshpandé

Customer orientation is a central tenet of marketing. However, less is known about how customer orientation varies across countries and time. Mintz, Currim, and Deshpandé (Eur. J. Mark., 56: 1014–1041, 2022) propose a country-level construct, national customer... View Details

Keywords: Global Range; Customer Focus and Relationships

24 Feb 2016
Research & Ideas

Why It's Best to Take Tests Early in the Day

Here’s a tip for parents of school-aged children. If your kids must take a standardized test, it’s best to do so either first thing in the morning or right after recess. On average, students perform best on tests at the start of the... View Details

Keywords: by Carmen Nobel; Education

06 Sep 2019
Working Paper Summaries

Experimentation and Startup Performance: Evidence from A/B Testing

Keywords: by Rembrand Koning, Sharique Hasan, and Aaron Chatterji

January 2016
Teaching Note

Merieux NutriSciences: Marketing Food Safety Testing

By: John A. Quelch

April 1987
Article

Testing in Models of Asymmetric Information

By: David S. Scharfstein and Barry Nalebuff