The propagation effect of climate risks on global stock markets: Evidence from the time and space domains

This study delves into the propagation effect of climate risks on global stock markets, emphasizing the dynamics of contagion. We first trace the contagion pathway of climate risks across global stock markets, revealing an initial diffusion to Asian markets, followed by European markets, and ultimately reaching American markets. The HSI (Hong Kong, China), DAX (Germany), and SZ (China) markets emerge as pivotal nodes for the indirect transmission of overall climate risk. Additionally, we scrutinize the propagation dynamics of climate risks across varying timescales, noting a heightened magnitude and swifter pace at short-timescale compared to the long-timescale. Lastly, we conduct a comparative analysis of the propagation impact of distinct types of climate risks, identifying drought and precipitation risks as exerting a more pronounced influence on stock markets, both in terms of propagation speed and magnitude, relative to temperature risks.