1.   And he raised the possibility of shifting cash allocated for investment into yen bonds to foreign bonds.

2.   A falling yen decreases the return on yen bonds to international investors.

3.   A rise in U.S. Treasury bonds on Friday also helped buoy interest in yen bonds.

4.   A stronger dollar discourages foreign investors from buying yen bonds by eroding the repatriated value of their investments.

5.   A stronger yen, and weaker dollar, increase the allure of yen bonds to investors who convert their proceeds into weaker currencies.

6.   Financing in foreign currency bonds, notably yen bonds, is also an option that should be examined, he said.

7.   Higher rates at home could weigh on yen bonds because many investors fund their bond purchases by borrowing at shorter maturities.

8.   Higher rates at home could weigh on yen bonds because many investors fund bond purchases by borrowing at shorter maturities.

9.   Higher U.S. rates could weigh on yen bonds, suggesting global interest rates are on their way higher.

10.   Individual investors are increasing purchase of such bonds because their interest rates are higher than yen bonds.