In this paper we document and examine unusual fluctuations in the G-Fund, which is one of five funds available in a voluntary federal government employee retirement savings vehicle called the Thrift Savings Plan. The G-Fund is managed as "internally" held debt by the United States Department of...

Ever since the emergence of regular and predictable issuance of coupon-bearing Treasury debt in the 1970s, thirty years has marked the outer boundary of Treasury bond maturities. However, longer-term bonds were not unknown in earlier years. Seven such bonds, including one with a forty-year term,...