Valuing climate-contingent debt for Zimbabwean agricultural infrastructure.

A research prototype that operationalises the dissertation "Valuation and Optimal Structuring of Climate-Contingent Bonds (CCBs) for Sustainable Agricultural Infrastructure Financing in Zimbabwe using Stochastic Calculus."It combines a Hull-White short-rate model, an Ornstein-Uhlenbeck climate index, a Jarrow-Turnbull reduced-form default intensity, Monte-Carlo pricing, Differential-Evolution structural optimisation and IPCC-aligned stress scenarios.