I am an Economics PhD student at Columbia University in New York. I am originally from Tel Aviv, but have lived in the Northeast most of my life.

My research interests primarily lie in industrial organization and applied microeconomic theory. I work on both theoretical and empirical projects that focus around the consequences of information acquisition, disclosure, and usage in competitive settings. Additionally, my work is motivated by and uses many tools from computer science. Sometimes I work on small projects contributing to fields in computer science relevant to my research interests in economics.

Publications

• The Perils of Exploration under Competition: A Computational Modeling Approach (w/ Kevin Liu, Alex Slivkins, Steven Wu)
  Proceedings of the 20th ACM conference on Economics and Computation (EC'19)

Work In Progress

• Recommenders' Originals: Integrated Recommender Systems and Vertical Foreclosure (w/ Duarte Goncalves)

Short Computer Science Projects

• The Ex-Ante View of Recommender System Design (w/ Duarte Goncalves, Shan Sikdar)
• Training Data Poisoning in Imperfect Information Games (w/ Natania Wolansky, Jisha Jacob, Iddo Drori)
  Poster Presentation at the New York Academy of Sciences 13th Annual Machine Learning Symposium, 2019

At Columbia University, I was a teaching assistant for:

• Introduction to Econometrics for Simon Lee (Spring 2019)
• "Data TA" - help seminar and honors thesis students with programming and econometrics (Spring 2018)
• Economic Growth and Development for Xavier Sala-i-martin (Fall 2017)

Open Source Software

• PlanOut.js - A JavaScript port of Facebook's PlanOut Experimentation Framework
• react-experiments - React components for implementing UI experiments
• Scientist4J - A port of Github's Refactoring tool Scientist in Java
• Bandits.jl - Multi-armed bandit simulations in Julia

Industry Projects

• RequestNow, Press: Boston Globe
• Eureqa
• Sidekick by HubSpot
• HubSpot Workflows

• g.aridor______at________columbia.edu
• Department of Economics, 420 West 118th St., New York, NY 10027