@africamonetary, I agree with the rationale and purpose of having a financial instrument, such as a Diaspora Bond, but a number of conditions need to be met.

Legal Systems: Countries with strong and transparent legal systems for contract enforcement find it easier to issue such bonds.

Civil Stability: Absence of civil strife is an important factor.

Presence of Institutions: Having strong institutions, including national banks and other institutions in destination countries are important to guarantee bonds.