Check it out. Updates in the “release notes” tab. Right now the model allows for both fixed-rate and ARM mortgages. ARM reset/recast equations are set (pretty sure about it at least!), home price appreciations fluctuate according to a random normal distribution bounded by mean/stdev from Case-Shiller Composite-10 data by default, although if a user has less optimistic assumptions (particularly about the mean monthly appreciation) it changes the outcome significantly.
Eventually we’re going to put this into an integrated tool with monte-carlo simulation showing the distribution/probabilities of outcomes to help users select the best option given their inputs/assumptions. Eventually being the key word.
**This is available for use with attribution, please email us if you have any questions**