KENNESAW, Ga. (U.S. News and World Report) | Sep 5, 2018

For those in the market to purchase U.S. Treasurys, it's a little like hitting the local coffee shop for a small mocha. Or a medium one. Or a large. Or an extra large, an extra-extra large – and the jumbo of all jumbos, the 30-year.

"Selecting the best maturities for Treasury bonds depends in part on the slope of the yield curve," says Roger C. Tutterow, an economics professor at Kennesaw State University's Michael J. Coles College of Business in Georgia.

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