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WRDS - Wharton Research Data Services | Baker Library

WRDS - Wharton Research Data Services Platform hosting financial, accounting, banking, economics, management, marketing, and public policy databases accessible through a single interface. Read More WRDS is a... View Details

1998
Working Paper

Some Evidence on the Optimal Welfare State Based on Subjective Data

By: Rafael Di Tella and Robert MacCulloch

It is often difficult to evaluate all the costs and benefits of the welfare state. This paper suggests an alternative approach based on surveys of citizen satisfaction with welfare programs. In the first part of the paper we estimate the level of unemployment benefits... View Details

Keywords: Personal Characteristics; Employment; Surveys; Programs; Government and Politics; Age; Income; Residency; Welfare; Governing Rules, Regulations, and Reforms; Cost vs Benefits; Satisfaction; United Kingdom

Research Summary

Building Small Business Utopia: How Artificial Intelligence and Big Data Can Increase Small Business Success

By: Karen Mills

Small business lending has remained unchanged for decades, laden with frictions and barriers that prevent many small businesses from accessing the capital they need to succeed. Financial technology, or “fintech,” promises to change this trajectory. In 2010, new fintech... View Details

16 Sep 2014
News

Use Data to Fix the Small Business Lending Gap

10 Jun 2017
News

How big data helped secure Emmanuel Macron’s astounding victory

31 Jan 2023
News

8 Strategies for Chief Data Officers to Create — and Demonstrate — Value

Article

Consistent Covariance Matrix Estimation with Cross-Sectional Dependence and Heteroskedasticity in Cross-Sectional Financial Data

By: K. A. Froot

Keywords: Econometrics; Panel Estimation; Autocorrelation; Heteroskedasticity; Mathematical Methods; Economics

February 2021
Tutorial

T-tests: Theory and Practice

By: Michael Parzen, Natalie Epstein, Chiara Farronato and Michael Toffel

This video provides an introduction to hypothesis testing, sampling, t-tests, and p-values. It provides examples of A/B testing and t-testing to assess whether difference between two groups are statistically significant. This video can be assigned in conjunction with... View Details

Keywords: Data Analysis; Data Analytics; Experiment Design; Experimentation; Analytics and Data Science; Analysis

June 2021
Article

Developing a Value Framework: Utilizing Administrative Data to Assess an Enhanced Care Initiative

By: Casey J. Allen, Jarrod S. Eska, Nikhil G. Thaker, Thomas W. Feeley, Robert S. Kaplan, Ryan W. Huey, Ching-Wei D. Tzeng, Jeffrey E. Lee, Steven J. Frank, Thomas A. Aloia, Vijaya Gottumukkala and Matthew H.G. Katz

We used national administrative data to assess multiple domains of value associated with enhanced recovery pathways for patients undergoing pancreatic surgery. Value metrics included in-hospital mortality, complication rates, length of stay (LOS), 30-day readmission... View Details

Keywords: Value-based Health Care; Health Care and Treatment; Analytics and Data Science; Outcome or Result; Measurement and Metrics; Performance Improvement

Read Now

August 1984 (Revised May 1992)
Case

MCI Telecommunications Corp. (C): Data Communications Market Opportunity Assessment

By: John F. Cady and Frank V. Cespedes

Keywords: Market Entry and Exit; Communication Technology; Telecommunications Industry

December 1996 (Revised August 1998)
Teaching Note

General Mills, Inc.: Appendix of Comparable Company Data TN

By: William E. Fruhan Jr.

Teaching Note for (9-197-037). View Details

Keywords: Food and Beverage Industry

April 2023
Technical Note

An Art & A Science: How to Apply Design Thinking to Data Science Challenges

By: Michael Parzen, Eddie Lin, Douglas Ng and Jessie Li

We hear it all the time as managers: “what is the data that backs up your decisions?” Even local mom-and-pop shops now have access to complex point-of-sale systems that can closely track sales and customer data. Social media influencers have turned into seven-figure... View Details

Keywords: Decision Making; Framework; Analytics and Data Science

Educators

September 2010
Article

Do Inventory and Gross Margin Data Improve Sales Forecasts for U.S. Public Retailers?

By: Saravanan Kesavan, Vishal Gaur and Ananth Raman

Firm-level sales forecasts for retailers can be improved if we incorporate cost of goods sold, inventory, and gross margin (defined here as the ratio of sales to cost of goods sold) as three endogenous variables. We construct a simultaneous equations model, estimated... View Details

Keywords: Sales; Forecasting and Prediction; Distribution; Goods and Commodities; Cost; Public Sector; Profit; Mathematical Methods; Analytics and Data Science; Retail Industry; United States

Information systems generate copious trace data about what individuals do and when they do it. Trace data may affect the resolution of lawsuits by, for... View Details

December 1987
Article

A Stochastic Three-Way Unfolding Model for Asymmetric Binary Data

By: Wayne S. DeSarbo, Donald R. Lehmann, Morris B. Holbrook, William J. Havlena and Sunil Gupta

February 2021
Tutorial

Getting Started in RStudio Cloud

By: Chiara Farronato and Caleb Kwon

This video provides an introduction to the free programming language R using an online cloud version of RStudio, which is the most popular editor and interface for writing and executing R code. The video begins by providing a brief background of R and RStudio and... View Details

Keywords: Data Analysis; Data Analytics; Experiment; Experimental Design; Analytics and Data Science; Analysis; Applications and Software