His plan includes a reserve fund providing a partial guarantee to absorb losses if housing prices continue to decline.

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They also include a partial guarantee on their principal via the purchase of U.S. Treasury zero-coupon bonds, or Treasury STRIPS, held in escrow by the U.S. Treasury.

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As well as jumping through all these hoops, to qualify for the partial guarantee (which will be tailor-made for each project) the backers must also be able to demonstrate that they definitely would not be able to go ahead without this carefully delineated government support.

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