Eli Orbach

Eli Orbach is a student at Phillips Exeter Academy and the Student Editor at ProMarket. He serves as President of the Exeter Economics Association, which has consistently been ranked among the top high school economics clubs in the United States. In addition, he was a gold medalist at the 2026 International Economics Olympiad in Shenzhen, China. His interest primarily lies in technological diffusion and its impediments.

Replacing Credit and Debit Cards With Account-to-Account Payments Would Save Americans Billions

The transaction fees that businesses incur using credit and debit cards cost Americans billions of dollars each year. Despite the availability of alternative, cheaper account-to-account options that cut out the middleman, Americans have been slow to move away from card payment systems due to market mechanisms that hide the true costs of card transactions to consumers, writes Eli Orbach.

A Decentralized Education System Risks Slowing the Adoption of GenAI to the Harm of Students

Eli Orbach examines how the United States’s decentralized education system impedes the diffusion and adoption of generative artificial intelligence in K-12 schools. Slow and uneven diffusion will exacerbate current socioeconomic inequalities, harm students’ future work prospects, and impede macroeconomic growth and productivity.

The US Is Not Prepared for the AI Electricity Demand Shock

The United States power grid is increasingly strained by the surging electricity demand driven by the AI boom. Efforts to modernize the power infrastructure are unlikely to keep pace with the rising demand in the coming years. Barak and Eli Orbach explore why competition in AI markets may create an electricity demand shock, examine the associated social costs, and offer several policy recommendations.

TI’s Calculator Monopoly Offers Lessons for Educators in the Age of Generative AI

Texas Instruments’ TI-84 calculator has been the standard graphing calculator for American students for twenty years, despite its high cost and lack of innovation. Barak and Eli Orbach explore how Texas Instruments created its entrenched calculator monopoly and the lessons it offers educators as they grapple with the emerging possibilities of artificial intelligence in the classroom.

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