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Income polarization and innovation: Evidence from African economies

  • Azomahou, Theophile


    (UNU-MERIT/MGSoG, Maastricht University)

  • Diene, Mbaye

    (University Cheikh-Anta-Diop, CRES)

Registered author(s):

    This paper examines the degree of polarization of GDP per capita of African economies between 1966 and 2008. Based on a nonparametric analysis, we find that countries tend to cluster in two classes of per capita GDP. Relying on the Wolfson's bipolarization measure, the results reveal that bipolarization has been accelerating during the two first decades and is still growing. We relate the evolution of polarization during the period to the business sectors. We find that countries specialization is the driving force of this evolution, namely, agriculture and industry sectors. We also study the innovation-development polarization relation in a VAR framework using patents and trademarks as measures of innovation.

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    Paper provided by United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT) in its series MERIT Working Papers with number 048.

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    Date of creation: 2012
    Date of revision:
    Handle: RePEc:unm:unumer:2012048
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