Merton Structural Credit Model (Matrixwise Solver)

Matrixwise Calculation Firm Asset Value, Volatility, Debt Value, Spread, Default Prob, Exp-Recovery

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Mark Whirdy (2026). Merton Structural Credit Model (Matrixwise Solver) (https://de.mathworks.com/matlabcentral/fileexchange/39717-merton-structural-credit-model-matrixwise-solver), MATLAB Central File Exchange. Abgerufen .

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Version Veröffentlicht Versionshinweise Action
1.5.0

Removed fsolve dependency (Optim Toolbox) for efficiency increase (even in scalar inputs case)

Full Code re-factorization to facilitate matrixwise calculation of bivariate ranges of {E_t,sig_E,K,T} values using 3d Newton Jacobian solution.

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1.4.0

Added the Black-Scholes Parameter Anonymous Function Handle as an Output to allow for further analysis (sensitivity, greeks etc)

d = @(z,A_t,sig_A,T,t,K,r)((1/(sig_A*sqrt(T-t)))*(log(A_t/K) + (r + (z)*0.5*sig_A^2)*(T-t)));

z = +1/-1

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1.3.0

Minor code refactoring, code returns the Black-Scholes Parameter to allow for further sensitivity analysis & calculation of greeks

d = @(z,A_t,sig_A,T,t,K,r)
z=+1/-1 for Call/Put

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1.1.0

Added Expected-Recovery calclulation

[A_t,sig_A,D_t,s,p,R] = calcMertonModel(E_t,sig_E,K,t,T,r);

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1.0.0

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