Diversification plays an important role in financial theory and lays the foundation for financial risk management. However, its role is greatly weakened when systemic risk events occur. In this paper, we study portfolio selection against systemic risk from the perspective of individual...

This paper examines whether and to what extent exposure to climate risk affects the deployment of corporate resources to working capital. Using a large sample of listed US firms, we find that exposure to climate risk is negatively associated with working capital. This effect is accentuated in...

In this paper, we revisit the study of an optimal risk management strategy for an insurer who wants to maximize the expected utility by purchasing reinsurance and managing reinsurance counterparty risk with a default-free hedging instrument, where the reinsurance premium is calculated by the...

This paper investigates dynamic hedging strategies for liabilities that are exposed to longevity risk. In particular, we consider the case where a hedger wishes to minimize the variance of her hedging error using longevity-linked derivatives. Time-consistent, closed-form solutions of optimal...

Regulatory changes are transforming the multi-trillion dollar swaps market from a network of bilateral contracts to one in which swaps are cleared through central counterparties (CCPs). The stability of the new framework depends on the resilience of CCPs. Margin requirements are a CCP's first...

Firm-level risk exposures and costs of equity are notoriously difficult to estimate. Using a novel approach mapping consumption risk exposures to firm characteristics, we combine the traditional portfolio-level approach to testing asset pricing models with firm-level information to measure...

This paper explores the sources of counterparty risk in material supply relationships. Using long-term supply contracts collected from SEC filings, we test whether three sources of counterparty risk — financial exposure, product quality risk, and redeployability risk — are priced in the...

Weather is a key source of income risk, particularly in emerging market economies. This paper uses a randomized controlled trial involving a sample of Indian farmers to study how an innovative rainfall insurance product affects production decisions. We find that insurance provision induces...

We study the magnitude of tail risk --- particularly lower tail downside risk --- that is present in intraday versus overnight market returns and thereby examine the nature of the respective market risk borne by market participants. Using the Generalized Pareto Distribution for the return...

We discuss when and why custom multi-factor risk models are warranted and give source code for computing some risk factors. Pension/mutual funds do not require customization but standardization. However, using standardized risk models in quant trading with much shorter holding horizons is...