Hi, I am Nalin Shani,

I am a Ph.D. candidate at the Kellogg School of Management, Northwestern University. I am fortunate to be advised by Professor Achal Bassamboo and Professor Maria Ibanez.

My research focuses on the dynamics of online review systems and their impact on consumer behavior and platform operations. I am particularly interested in how consumer experiences shape the helpfulness of online reviews and influence decision-making processes in digital marketplaces.

Prior to my doctoral studies, I graduated from the Indian Institute of Technology Delhi with a B.Tech. in Mechanical Engineering.

Nalin Shani

Research

Working Papers

  • When More Experience Is Not More Helpful: Evidence from Positive and Negative Reviews on Steam
    with Achal Bassamboo and Maria Ibanez
    Submitted to Management Science
    Abstract
    As user reviews grow on online platforms, separating useful feedback from noise becomes operationally crucial for guiding consumers and for triaging feedback internally (e.g., for product learning and quality assurance). Yet the most direct indicator of review helpfulness---readers' votes---arrives later, so platforms must assess the expected helpfulness of new reviews based on cues available at submission. Many platforms display reviewer experience cues, but it is unclear how such experience translates into perceived review helpfulness and whether the relationship differs for positive versus negative reviews. Using 26.8 million video-game reviews on Steam, where reviews display reviewers' cumulative playtime and a binary verdict (recommend/not recommend), we aim to address this question by estimating models with rich controls and fixed effects. We find that experience predicts helpfulness in a non-monotonic way and flips by verdict: U-shaped for recommended reviews (i.e., reviews from low- and high-experience users receive more helpful votes than reviews from moderately experienced users) but inverted-U for not-recommended reviews (peaking at moderate experience). Observable cues (e.g., review length, product maturity) systematically moderate these patterns. Our findings offer clear guidance for review management: rather than treating experience as a uniform quality signal, platforms should interpret and weigh experience differently based on review verdict and observable context cues.

Teaching

Here are some of the courses I have assisted with at Kellogg School of Management:

MBA Courses

  • OPNS 430 - Operations Management
    Spring 2024, Winter 2024, Winter 2025 (Head TA), Spring 2025, Winter 2026 (Head TA)
  • OPNS 440 - Designing and Managing Business Processes
    Winter 2025, Winter 2026
  • OPNSX 454 - Strategic Decisions in Operations
    Spring 2025, Spring 2026
  • OPNS 455 - Supply Chain Management
    Winter 2026

PhD Courses

  • OPNS 516 - Stochastic Foundations
    Spring 2025, Spring 2026 | Instructor: Achal Bassamboo
  • OPNS 524 - Empirical Methods in Operations Management
    Spring 2025 | Instructor: Maria Ibanez