Sustainable Investing

We review the literature on sustainable investing, focusing on financial effects. First, we examine the effects of investor tastes on portfolio tilts and asset prices in a simple equilibrium setting. We establish novel connections, including a direct relation between the green portfolio tilt and the greenium. We also relate our framework to prior modeling of divestment. Finally, we review evidence related to the main concepts from our theoretical analysis, including the greenium, green tilts, climate risk, and investor tastes.