Over the past two decades, environmental, social, and governance (ESG) considerations have shifted from the periphery of investing to the mainstream of global capital markets. Asset managers now routinely incorporate ESG information into capital allocation, corporate engagement, and risk assessment. U.S. sustainable investment assets grew from a niche segment in the mid-1990s to more than $16 trillion by 2020, according to the U.S. Forum for Sustainable and Responsible Investment.

Despite this rapid expansion, a central question remains unresolved: How does ESG information affect firm value? While policymakers, investors, and scholars broadly agree that ESG risks matter, the underlying economic mechanisms remain debated. Discussions often focus on two broad channels.

ESG information can affect firm value through two main mechanisms. First, if investors avoid firms with poor ESG profiles for preference-based or regulatory reasons, the resulting investor base shrinkage may raise firms’ cost of capital and reduce valuations—a mechanism often referred to as the discount-rate channel. Second, negative ESG information may signal deteriorating future fundamentals, such as weaker sales, reputational damage, customer or employee loss, litigation exposure, or costly operational adjustments. In this cash flow channel, valuation effects arise because ESG incidents lead investors to revise expectations of future earnings.

In our new article, ESG News, Future Cash Flows, and Firm Value, we examine how ESG information affects stock prices through the cash flow channel. Our analysis combines a global panel of analyst forecasts of earnings, sales, and profit margins with a comprehensive dataset of negative ESG news events spanning environmental, social, and governance incidents. We assess how analysts revise their forecasts following negative ESG news. (more…)