The estimated values to society from long-term public projects, including climate change mitigation and infrastructure construction, are highly sensitive to the social discount rate (SDR) employed. Governmental guidance on social discounting has predominantly been based on input from expert...

In this paper, we provide techniques for combining different experts' opinions of the forward looking equity premium to resolve questions about the future value of an equity index tracker fund. By exploiting the fact that the survey data is approximately gamma distributed, we either use...