@article{Asongu_435,
author = {Nicholas Biekpe Simplice Asongu},
url = {http://www.sciencedirect.com/science/article/pii/S0275531917303185},
doi = {10.1016/j.ribaf.2017.07.121},
year = {2017},
date = {2017-07-13},
journal = {Research in International Business and Finance},
abstract = {This study assesses how market power in the African banking industry is affected by the complementarity between information sharing offices and information and communication technology (ICT). The empirical evidence is based on a panel of 162 banks consisting of 42 countries for the period 2001-2011. Four estimation techniques are employed, namely: (i) instrumental variable Fixed effects to control for the unobserved heterogeneity; (ii) Tobit regressions to control for the limited range in the dependent variable; and (iii) Instrumental Quantile Regressions (QR) to account for initial levels of market power. Whereas results from Fixed effects and Tobit regressions are not significant, with QR: (i) the interaction between internet penetration and public credit registries reduces market power in the 75th quartile and (ii) the interaction between mobile phone penetration and private credit bureaus increases market power in the top quintiles. Fortunately, the positive net effects are associated with negative marginal effects from the interaction between private credit bureaus and mobile phone penetration. This implies that mobile phones could complement private credit bureaus to decrease market power when certain thresholds of mobile phone penetration are attained. These thresholds are computed and discussed.},
keywords = {Financial access; Information asymmetry; ICT},
pubstate = {published},
tppubtype = {article}
}

@article{Asongu_568,
author = {Bertrand Moulin Simplice Asongu},
url = {http://www.sciencedirect.com/science/article/pii/S0275531916300769},
doi = {10.1016/j.ribaf.2016.04.011},
year = {2016},
date = {2016-05-06},
journal = {Research in International Business and Finance},
volume = {38},
number = {September},
pages = {202-213},
abstract = {This study assesses the role of ICT in complementing private credit bureaus (PCB) and public credit registries (PCR) in reducing information asymmetry for financial access. The empirical evidence is based on Generalised Method of Moments with 53 African countries for the period 2004–2011. The following findings are established. First on financial access: (i) the marginal effects from interactions between ICT and PCR (PCB) are consistently positive (negative); (ii) net effects from interactions are negative with the higher magnitude from PCR and (iii) only thresholds corresponding to interactions between PCR and internet penetration are within range. Second, findings on financial allocation efficiency reveal positive marginal and net effects exclusively for mobile phones and PCR. Third, allocation efficiency may be constrained by increasing financial deposits. Overall, the complementarity between information offices and ICT in boosting financial access is still very limited. Policy implications are discussed with emphasis on improving the engaged complementarity and fighting surplus liquidity.},
keywords = {Financial access; Information asymmetry; ICT},
pubstate = {published},
tppubtype = {article}
}