Title: The Bond Market Bubble: Fact or Fiction?
Headings: 
The Bond Market Bubble: Fact or Fiction?
What Is a Bond Bubble?
Bubbles Throughout History
Understanding When It's Really a Bubble
Contributing Factors to a Bond Market Bubble
If the Bubble Is Real, Will It Burst?
Longer-Term Data Shows the Rarity of Major Sell-Offs
Non-Treasury Segments of the Market
Positive and Negative Returns
Weathering a Bond Market Bubble

Content: Japan experienced these events in the 1990s. The drop in Japan's 10-year below 2% occurred in late 1997, and it hasn’t regained this level for more than a brief interval since then. In the article "Bonds: Born to Be Mild" on the investing commentary website SeekingAlpha, AllianceBernstein fixed-income chief Douglas J. Peebles noted: "Increased bond-buying by insurance companies and private-sector defined-benefit plans could also temper the pace at which bond yields rise." In other words, a higher yield would drive renewed demand for bonds, moderating the impact of any sell-off. Could the U.S. bond market eventually collapse as many are predicting? Possibly, but not likely if the post-crisis experience in Japan, which has been very similar to ours thus far, is any indication that rates can remain low—for far longer than investors are expecting. Longer-Term Data Shows the Rarity of Major Sell-Offs
A look further back shows that the downside in Treasuries has been relatively limited. According to data compiled by Aswath Damodaran at New York University’s Stern School of Business, the 30-year bond has suffered a negative return in only 15 calendar years since 1928.