Also, the four interest-rate increases from the Fed in 2018 helped drive short-dated interest rates higher, increasing the returns and appeal of safer assets. Increased supply of short-dated US...

Also, the four interest-rate increases from the Fed in 2018 helped drive short-dated interest rates higher, increasing the returns and appeal of safer assets. Increased supply of short-dated US government debt to fund increased government spending has also contributed to higher short-dated interest rates.