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Saturday, October 11, 2008

Plan B

From Chicago econ prof Luigi Zingales. Luigi has some creative ideas about how to facilitate mortgage renegotiation and the bankruptcy of financial institutions. In particular:

Congress should pass a law that makes a re-contracting option available to all homeowners living in a zip code where house prices dropped by more than 20% since the time they bought their property....

How do we implement this? Thanks to two brilliant economists, Chip Case and Robert Shiller, we have reliable measures of house price changes at the zip code level. Thus, by using this real estate index, the re-contracting option will reduce the face value of the mortgage (and the corresponding interest payments) by the same percentage by which house prices have declined since the homeowner bought (or refinanced) his property....

In exchange, however, the mortgage holder will receive some of the equity value of the house at the time it is sold. Until then, the homeowners will behave as if they own 100% of it. It is only at the time of sale that 50% of the difference between the selling price and the new value of the mortgage will be paid back to the mortgage holder....

The reason for this sharing of the benefits is twofold. On the one hand, it makes the renegotiation less appealing to the homeowners, making it unattractive to those not in need of it. For example, homeowners with a very large equity in their house (who do not need any restructuring because they are not at risk of default) will find it very costly to use this option because they will have to give up 50% of the value of their equity. Second, it reduces the cost of renegotiation for the lending institutions, which minimizes the problems in the financial system.