Economist III - Causal Inference & Marketplace Analytics

Expedia Group; Seattle (WA); On-site; USD 138,000 - 193,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

Paid time off

Employee Assistance Program

Wellness and travel reimbursement

Travel discounts

IATAN membership

Job summary

Expedia Group in Seattle is seeking an Economist to support causal inference and marketplace measurement across one of the world's largest travel platforms. You will tackle high-stakes problems, measure elasticity, and inform pricing and policy decisions.

You'll build econometric models, collaborate with ML engineers and data scientists, and translate findings into clear analyses for product leaders. This is an individual contributor role with growth potential.

Qualifications

• Master's degree in Economics, Econometrics, Statistics, or related field; or Bachelor's with equivalent related professional experience.
• 0-3 years of relevant professional experience.
• Solid foundation in microeconomic theory and applied econometrics.
• Experience applying econometric methods to real-world business problems in tech/e-commerce.
• Proficiency in Python or R with strong SQL skills.
• Ability to explain econometric methodology to non-technical audiences.
• Ability to work both collaboratively and autonomously in a fast-paced environment.

Responsibilities

• Build econometric models (panel data methods, DiD, RDD, IV) to help measure elasticity, changes in supplier behavior, and customer lifetime value.
• Develop long-term impact measurement approaches, moving beyond short-term metrics.
• Assist in designing and executing causal measurement frameworks for marketplace interventions, including geo experiments, difference-in-differences, synthetic controls, and instrumental variable approaches.
• Partner with ML teams to help integrate causal inference into production systems, supporting ranking algorithms, pricing optimization, and recommendation engines with econometrically validated insights.
• Translate econometric findings into clear, well-organized analyses and visuals for stakeholders.
• Collaborate with data scientists and economists across the organization, contributing to a culture of rigorous causal reasoning.

Skills

Econometrics

Causal inference

Python

SQL

Communication

Team collaboration

Education

Master's degree in Economics or related

PhD preferred

Tools

IV

DiD

RDD

Synthetic controls

Panel data methods

Experimental design

Job description

Expedia Group in Seattle is seeking an Economist to support causal inference and marketplace measurement across one of the world's largest travel platforms. You will tackle high-stakes problems, measure elasticity, and inform pricing and policy decisions.

You'll build econometric models, collaborate with ML engineers and data scientists, and translate findings into clear analyses for product leaders. This is an individual contributor role with growth potential.