# Questions tagged [default]

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16 questions
0answers
418 views

### is there a mapping from Altman Z-score for private companies to bond ratings or probability of default?

On wikipedia, there is a formula to calculate the Altman Z-score for private companies: Z-score estimated for private firms: T1 = (Current Assets − Current Liabilities) / Total Assets T2 = Retained ...
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105 views

### How can we price an option taking into account the “issuer risk”?

I'm trying to take a closer look to option pricing in a risky environment. Let's say a firm $A$ sells me an (European) option on an underlying $S$ (which of course can be any other financial product ...
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225 views

### default probability

Suppose the hazard rate is $\lambda$ the default probability density function follow exponential $f(t) = \lambda e^{-\lambda t}$ and cumulative probability function is $F(t) = 1 - e^{-\lambda t}$ ...
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64 views

### Credit spreads vs default events dependence

Reading this note it strikes me that credit spreads and defaults seem not to be commonly modeled jointly (e.g. more or less directly in structural models), but at best with some kind of "ex post" ...
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76 views