Publications

February 2024
Case

Tabby: Winning Consumers' Digital Wallets

By: Eva Ascarza and Fares Khrais

Hosam Arab (MBA 2009), cofounder and CEO of Tabby, a Saudi-based fintech startup, raised its Series D funding round in October 2023, four years after its inception, valuing it as a regional unicorn. Tabby's core product, a buy-now-pay-later (BNPL) service, allowed... View Details

Keywords: Business Model; Business Startups; Risk Management; Competitive Strategy; Expansion; Financial Services Industry; Technology Industry; Saudi Arabia

February 2024
Supplement

Ball: EVA Driving the World's Leading Can Manufacturer (A) Student Spreadsheet Supplement

By: Jonas Heese

January 2024
Teaching Note

Ball: EVA Driving the World’s Leading Can Manufacturer (A) – (C)

By: Jonas Heese

Teaching Note for HBS Case Nos. 124-002, 124-003, and 124-004. View Details

January 2024 (Revised February 2024)
Course Overview Note

Managing Customers for Growth: Course Overview for Students

By: Eva Ascarza

Managing Customers for Growth (MCG) is a 14-session elective course for second-year MBA students at Harvard Business School. It is designed for business professionals engaged in roles centered on customer-driven growth activities. The course explores the dynamics of... View Details

Keywords: Customer Relationship Management; Decision Making; Analytics and Data Science; Growth Management; Telecommunications Industry; Technology Industry; Financial Services Industry; Education Industry; Travel Industry

January 2024 (Revised June 2025)
Exercise

Travelogo: Understanding Customer Journeys

By: Eva Ascarza, Nicolas Padilla and Oded Netzer

In late May 2023, Sarah Merino, the newly appointed manager of the Customer Insights group at Travelogo—an online travel booking platform—initiates a comprehensive analysis of clickstream data to understand the varied behaviors and needs of their users. In preparation... View Details

Keywords: Customer Relationship Management; Analysis; Analytics and Data Science; Marketing Strategy; Segmentation; Consumer Behavior; Travel Industry; United States

2025
Working Paper

Enhancing Treatment Effect Prediction on Privacy-Protected Data: An Honest Post-Processing Approach

By: Ta-Wei Huang and Eva Ascarza

As firms increasingly rely on customer data for personalization, concerns over privacy and regulatory compliance have grown. Local Differential Privacy (LDP) offers strong individual-level protection by injecting noise into data before collection. While... View Details

Keywords: Targeted Intervention; Conditional Average Treatment Effect Estimation; Differential Privacy; Honest Estimation; Post-processing; Analytics and Data Science; Consumer Behavior; Marketing

SSRN

Read Now

November 2023 (Revised March 2024)
Technical Note

Customer Data Privacy

By: Eva Ascarza and Ta-Wei Huang

This note provides an overview of the evolving landscape of customer data privacy in 2023. It highlights two pivotal aspects that make privacy a central concern for businesses: building and maintaining customer trust and navigating the intricate regulatory... View Details

Keywords: Customer Relationship Management; Governance Compliance; Governing Rules, Regulations, and Reforms; Risk and Uncertainty; Reputation; Trust; Information Management; Retail Industry; Technology Industry; Financial Services Industry; Telecommunications Industry; Europe; United States

October 2023 (Revised August 2025)
Supplement

Managing Customer Retention at Teleko

By: Eva Ascarza and Ta-Wei Huang

October 2023 (Revised August 2025)
Teaching Note

Managing Customer Retention at Teleko

By: Eva Ascarza and Ta-Wei Huang

Teaching Note for HBS Case No. 523-005. View Details

Keywords: Customer Relationship Management; United States

October 2023
Supplement

Ball: EVA Driving the World’s Leading Can Manufacturer (B)

By: Jonas Heese and Susan Pinckney

October 2023
Supplement

Ball: EVA Driving the World’s Leading Can Manufacturer (C)

By: Jonas Heese and Susan Pinckney

October 2023 (Revised January 2024)
Case

Ball: EVA Driving the World's Leading Can Manufacturer (A)

By: Jonas Heese and Susan Pinckney

The case describes Ball’s multi decade history of using Economic Value Added to drive decision making and workforce compensation. In 2016, the company acquired Rexam PLC and became the world’s leading metal beverage container company. Consumer demand for varied... View Details

October 2023 (Revised February 2024)
Technical Note

Design and Evaluation of Targeted Interventions

By: Eva Ascarza and Ta-Wei (David) Huang

Targeted interventions serve as a pivotal tool in business strategy, streamlining decisions for enhanced efficiency and effectiveness. This note delves into two central facets of such interventions: first, the design of potent decision guidelines, or targeting... View Details

Keywords: Marketing; Customer Relationship Management; Analysis; Design; Business Strategy; Retail Industry; Apparel and Accessories Industry; Technology Industry; Financial Services Industry; Telecommunications Industry

2023
Working Paper

The Customer Journey as a Source of Information

By: Nicolas Padilla, Eva Ascarza and Oded Netzer

In the face of heightened data privacy concerns and diminishing third-party data access, firms are placing increased emphasis on first-party data (1PD) for marketing decisions. However, in environments with infrequent purchases, reliance on past purchases 1PD... View Details

Keywords: Customer Journey; Privacy; Consumer Behavior; Analytics and Data Science; AI and Machine Learning; Customer Focus and Relationships

Read Now

September 2023
Supplement

Design and Evaluation of Targeted Interventions

By: Eva Ascarza

Targeted interventions serve as a pivotal tool in business strategy, streamlining decisions for enhanced efficiency and effectiveness. This note delves into two central facets of such interventions: first, the design of potent decision guidelines, or targeting... View Details

Keywords: Marketing; Design; Business Strategy; Policy; Retail Industry; Apparel and Accessories Industry; Technology Industry; Financial Services Industry; Telecommunications Industry

July 2023 (Revised August 2025)
Supplement

Managing Customer Retention at Teleko

By: Eva Ascarza

This exercise aims to teach students about 1)Targeting Policies; and 2)Algorithmic decision making, 3) Retention management. View Details

Keywords: Customer Relationship Management; Telecommunications Industry; Technology Industry; United States

June 2023
Simulation

Artea Dashboard and Targeting Policy Evaluation

By: Ayelet Israeli and Eva Ascarza

Companies deploy A/B experiments to gain valuable insights about their customers in order to answer strategic business problems. In marketing, A/B tests are often used to evaluate marketing interventions intended to generate incremental outcomes for the firm. The Artea... View Details

February 2023
Case

Success Academy Charter Schools

By: Robin Greenwood, Joshua D. Coval, Denise Han, Ruth Page and Dave Habeeb

This stand-alone multimedia case follows the story of Eva Moskowitz and Success Academy, a network of high-performing charter schools in New York City. As a New York City councilor between 1999 and 2006, Moskowitz became frustrated over the inertia and dysfunction in... View Details

Keywords: Business and Government Relations; Performance Effectiveness; Equality and Inequality; Private Sector; Education Industry; New York (city, NY)