About

Michael Choi is an Associate Professor of Economics at the University of California, Irvine. His research interests include Monetary Economics, Micro Theory, and Search and Matching Theory. He is an applied theorist focused on markets with frictions, such as search frictions, information frictions, and financial frictions. His work explores the roles of these frictions in traditional goods markets, online markets, and over-the-counter asset markets. The applications of his research encompass optimal monetary policy in retail markets, pricing strategies in online platforms, prediction of web search behaviors, and optimal information policy in asset markets. He employs techniques based on dynamic programming, optimization theory, and the theory of total positivity, and develops new tools and methods as needed to advance his analyses.

Research topics

• Computer Science
• Artificial Intelligence
• Medicine
• Economics
• Endocrinology
• Mathematical economics
• Microeconomics
• Biology
• Internal medicine
• Monetary economics

Selected publications

• Estradiol treatment or modest exercise improves hepatic health and mitochondrial outcomes in female mice following ovariectomy

  AJP Endocrinology and Metabolism · 2021 · 45 citations

  • Internal medicine
  • Endocrinology
  • Medicine

  OVX induces hepatic steatosis in sedentary mice which can be prevented by modest physical activity (VWR) and/or estradiol treatment. Estrogen impacts hepatic mitochondrial coupling in a substrate-specific manner. OVX mice have impaired fecal bile acid excretion, which was rescued with estradiol treatment.

  DOI

• New Monetarism in Continuous Time: Methods and Applications

  The Economic Journal · 2020 · 27 citations

  1st authorCorresponding
  • Computer Science
  • Economics
  • Computer Science

  Abstract We develop a New Monetarist model in continuous time where agents trade continuously in competitive markets and infrequently in pairwise meetings. Agents can produce and consume both in flows over time intervals and in discrete quantities at points in time. We detail the methodology to solve individual optimisation problems and characterise the full set of perfect foresight equilibria. We illustrate the role of continuous time and the tractability of our approach with three applications related to monetary policy: (i) forward guidance with policy announcements; (ii) aggregate demand management and firm entry; (iii) open market operations with partially liquid assets.

  DOI

Frequent coauthors

• Guillaume Rocheteau

  University of California, Irvine

  23 shared

• Lones Smith

  University of Wisconsin–Madison

  6 shared

• John P. Thyfault

  University of Kansas Medical Center

  5 shared

• Colin S. McCoin

  University of Kansas Medical Center

  5 shared

• Marwa Abdalla

  University of Washington

  4 shared

• Madeline Kirby

  MedStar Georgetown University Hospital

  4 shared

• Alex Von Schulze

  Stowers Institute for Medical Research

  3 shared

• Randall Wright

  Wisconsin School of Professional Psychology

  3 shared

Education

• PhD, Economics

  University of Wisconsin Madison

  2013

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