Working Paper

International Climate News

M. J. Arteaga‑Garavito  ·  R. Colacito  ·  M. M. Croce  ·  B. Yang

Abstract

We develop novel high-frequency indices that measure climate attention across a wide range of developed and emerging economies. By analyzing the text of over 23 million Tweets published by leading national newspapers, we find that a country experiencing more severe climate news shocks tends to see both an inflow of capital and an appreciation of its currency. In addition, brown stocks experience large and persistent negative returns after a global climate news shock if located in highly exposed countries. A risk-sharing model in which investors price climate news shocks and trade consumption and investment goods in global markets rationalizes these findings.

Keywords: International Climate Indices, Text Analysis, Trade, Currencies   |   JEL: F3, F4, G1
Authors
María José Arteaga-Garavito
María José Arteaga‑Garavito
Mays Business School
Texas A&M University
Riccardo Colacito
Riccardo Colacito
Kenan‑Flagler Business School
UNC Chapel Hill & NBER
Max Croce
Max Croce
Bocconi University
CEPR, IGIER & Baffi‑Carefin
Biao Yang
Biao Yang
Shanghai Jiao Tong University
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NBER presentation — recorded July 2025.