Jack (Enjie) Ma

Jack (Enjie) Ma

PhD Candidate in Economics

Cornell University

Welcome!

Hi! I’m Jack Ma, a fifth-year Economics PhD candidate at Cornell University.

My research examines the aggregate impacts of climate change, focusing on how climate shocks affect firm productivity, industry dynamics, and innovation incentives.

I will be on the job market during the 2025–2026 academic year.

Interests

  • Environmental Economics
  • Productivity
  • Firm Dynamics
  • Technological Change and Innovation

Education

  • PhD in Economics, 2020-2026 (Expected)

    Cornell University

  • BS in Economics and Statistics, 2016-2020

    University of California, Los Angeles

Upcoming Talks

AERE@ASSA - Extreme heat and directed innovation (evidence from OECD REGPAT)
Jan 3, 2026 Philadelphia, Pennsylvania

Work in progress

Extreme Heat and Directed Technological Change: Evidence from OECD REGPAT (JMP)

Climate Change and Market Power

with Shanjun Li, Ivan Rudik, and Hui Zhou

Teaching

Ernest Liu Family Outstanding Teaching Award (2023)

Econ 1110: Introductory Microeconomics (Prof. Nick Sanders)

TA: Fall 2021 (4.5/5), Fall 2022 (4.4/5)

Econ 1120: Introductory Macroeconomics (Prof. George Orlov, Prof. Terence Alexander)

TA: Spring 2023 (4.5/5), Spring 2024 (4.8/5)

Econ 3040: Intermediate Macroeconomics (Prof. Mathieu Taschereau-Dumouchel)

TA: Spring 2022 (4.5/5), Spring 2023 (4.8/5)

Recent Talks

AERE Summer Conference

AERE Summer Conference - talk on paper “Climate Change and Market Power”
May 29, 2025 Santa Ana Pueblo, New Mexico

CES Conference

CES Rising Star Session’s talk on paper “Climate Change and Market Power”
Mar 22, 2025 Ann Arbor, Michigan

Eastern Economic Association Conference

AERE-EEA talk on paper “Climate Change and Market Power”
Feb 21, 2025 Sheraton Times Square NYC

Contact