Carbon Returns across the Globe

The pricing of carbon transition risk is central to the debate on climate‐aware investments. Emissions are tightly linked to sales and are available to investors only with significant lags. The positive carbon return, or brown‐minus‐green return differential, documented in previous studies arises from forward‐looking firm performance information contained in emissions rather than a risk premium in ex ante expected returns. After accounting for the data release lag, carbon returns turn negative in the United States and insignificant globally. Developed markets experience lower carbon returns due to intense climate concern shocks, while countries with stringent climate policies exhibit higher carbon returns.