Allianz Chief Economist El-Erian stated that the bond market reacted to the news of the US Treasury's expansion of its Treasury repurchase program, with long-term Treasury yields generally declining.
1. At a deeper level, the significance of this event lies not primarily in the repurchase itself. Whether in absolute terms or relative to net Treasury issuance, this repurchase is not large. The market is more concerned with whether this signifies a potential for wider use of yield curve control (YCC) in the future.
2. YCC is not a policy tool without costs. While it can indeed lower long-term yields in the short term, thereby reducing mortgage and other financing costs, it can also bring side effects and unintended consequences.
3. The effects of this type of financial engineering are typically short-lived. Unless followed by more fundamental policy adjustments, the effect of suppressing yields is unlikely to be sustained in the long term.