[1] Ebonyi State Univ, Dept Econ, Abakaliki, Nigeria
[2] Ebonyi State Univ, Dept Banking & Finance, Abakaliki, Nigeria
[3] Leiden Univ, African Studies Ctr, Postbus 9555, NL-2300 RB Leiden, Netherlands
[4] Cent Bank Nigeria, Monetary Policy Dept, Abuja, Nigeria