Reinsurance is perceived to have a stabilizing effect on the direct insurance industry and thereby on the economy overall. Yet, research into how exactly reinsurance impacts various areas is scarce. Traditionally, studying the impact of reinsurance used to be in the domain of actuaries; since the 1960s, they have tried to assess how different contract elements can provide what came to be called “optimal reinsurance.” In the 2010s, such research was intensified in developing countries with the aim to deploy reinsurance to support economic growth and security. Interest in reinsurance increased when the industry became more visible in the 1990s as the impact of natural catastrophes started being linked to a changing climate. Reinsurers emerged as spokespeople for climate-related issues, and the industry took a lead role in arguing in favor of implementing measures to reduce environmental deterioration. Reinsurers, it was argued, have a vested interest in managing the impact of natural catastrophes. This triggered discussions about the role of reinsurance overall and about how to assess its impact. In the wake of the financial crisis of 2007 and 2008, interest in reinsurance again surged, this time due to perceived systemic impacts.
