The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe (2020)
Report
Johnson, K., Philip, D., & Engels, C. (2020). The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe. [No known commissioning body]

Climate change and soil health are intimately linked, as reflected in the United Nation’s Sustainable Development Goal (SDG) 15. Land degradation is responsible for a significant proportion of all global greenhouse gas emissions (WGII, IPCC, 2007), t... Read More about The ABC of Soil Literacy - Evidence from Ghana, South Africa and Zimbabwe.

Asset Securitizations and Bank Stability:Evidence from Different Banking Systems (2020)
Journal Article
Abdelsalam, O., Elnahass, M., Ahmed, H., & Williams, J. (2022). Asset Securitizations and Bank Stability:Evidence from Different Banking Systems. Global Finance Journal, 51, Article 100551. https://doi.org/10.1016/j.gfj.2020.100551

The impact of asset securitization on the risk and performance (i.e. financial stability) of banks, both individually and systemically, is the subject of substantial debate by financial regulators and practitioners. This paper is the first to empiric... Read More about Asset Securitizations and Bank Stability:Evidence from Different Banking Systems.

Forecasting Options Prices Using Discrete Time Volatility Models Estimated at Mixed Timescales (2020)
Journal Article
Calice, G., Chen, J., & Williams, J. (2020). Forecasting Options Prices Using Discrete Time Volatility Models Estimated at Mixed Timescales. The journal of derivatives, 27(3), 45-74. https://doi.org/10.3905/jod.2019.1.094

Option pricing models have traditionally utilized continuous-time frameworks to derive solutions or Monte Carlo schemes to price the contingent claim. Typically these models were calibrated to discrete-time data using a variety of approaches. Recent... Read More about Forecasting Options Prices Using Discrete Time Volatility Models Estimated at Mixed Timescales.

Who should pay for interdependent risk? Policy implications for security interdependence among airports (2020)
Journal Article
Williams, J., Kuper, G., & Massacci, F. (2020). Who should pay for interdependent risk? Policy implications for security interdependence among airports. Risk Analysis, 40(5), 1001-1019. https://doi.org/10.1111/risa.13454

We study interdependent risks in security, and shed light on the economic and policy implications of increasing security interdependence in presence of reactive attackers. We investigate the impact of potential public policy arrangements on the secur... Read More about Who should pay for interdependent risk? Policy implications for security interdependence among airports.