The New York State Liberty Development Corp. on Dec. 1 sold $672 million of Liberty bonds that will help the Port Authority of New York and New Jersey finance the continuing construction of One World Trade Center.

Since the Port Authority is not eligible to issue Liberty bonds, a so-called mirror bond structure with the corporation enables it to achieve lower-cost tax-exempt financing for One World Trade Center compared to higher-cost taxable alternatives, the authority said after Thursday's sale.

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