Do financial sector balance sheets drive long-term Treasury yields?
Core argument: The authors attribute much of the increase in US 10-year Treasury yields to higher term premia, whose trend they describe as both upward and robust.
The chart shows US 10-year Treasury yields and our estimates of daily term premia. Much of the recent yield increase is due to higher term premia. More worryingly, the trend in term premia looks both upward and robust. Term premia relate directly to a liquidity-driven world because they are affected by the size and composition of the gross (not net) financial sector balance sheet. Evidence shows mismatches between the maturity, credit and forex components of balance sheets can affect the level of term premia. Because conventional narratives largely ignore balance sheet size and structure, focusing instead on net rather than gross flows, they naturally downplay the impact of term premia. Key conclusions of our liquidity-based research are that: (1) fluctuating term premia have become the most important driver of bond returns (dominating policy rate expectations), and (2) long-term yields drive short-term policy rates, not vice versa. It follows that the upward drift in term premia not only suggests deteriorating bond returns, but they also warn that policy rates may prove sticky.

