Prof. Tahoun is a Full Professor at the Paris Campus and was named one of the Top 40 Professors under 40. He was previously a Full Professor at London Business School, where he was on the faculty from 2012 to 2026 and received tenure in 2019. He was also on the faculty of the London School of Economics and a research scholar at Chicago Booth, Wharton, and the University of Valencia. Earlier in his career, he worked as a banker at HSBC.

His research spans accounting, finance, political economy, and the economics of science and technology.

A central strand of his work is “Text as Data”: developing methods that transform large volumes of unstructured text into measurable economic signals. His work uses these methods to identify and predict systemic shocks—from political and geopolitical events to global pandemics—and to measure firms’ exposure to risks including cyber-security, inflation, and climate change.

Together with his co-authors, this work led to the development of their software, NL Analytics, a proprietary computational-linguistics tool used by policymakers, central bankers, and researchers to monitor country risk and sentiment, trace risk transmission during crises, and assess how firms respond to economic shocks, policies, and regulation.

Another major strand of Tahoun’s research examines the market for political favours. His work explores politicians’ financial interests, government intervention, corporate–political connections, and how political upheaval and uncertainty shape firms and financial markets.

His more recent research develops new ways to measure scientific and technological change at scale, tracing how new ideas and technologies emerge and diffuse across firms and economies.

Tahoun has published in leading economics, finance, and accounting journals, including the Quarterly Journal of Economics, Review of Economic Studies, Journal of Finance, Review of Financial Studies, Journal of Financial Economics, Journal of Accounting Research, and Journal of Accounting and Economics. His research has also been featured in The Economist, The New York Times, The Wall Street Journal, and the Financial Times.

He served two terms as an Associate Editor of the Journal of Accounting Research, where he continues to serve as an ad hoc Associate Editor and also received the Referee of the Year Award. His honours include ten consecutive grants from the prestigious Institute for New Economic Thinking.

Tahoun’s doctoral training spanned seven institutions across five countries, including Wharton, Chicago Booth, the London School of Economics, the University of Manchester, Tilburg University, the University of Valencia, and Cairo University.