Abstract:
In an era of knowledge-based economies, intellectual capital has gained prominence as
a critical financial performance driver. However, extant literature shows that the effect
of intellectual capital on financial performance is unclear. Whereas theoretical
assertions argue that firms can leverage on knowledge based resources through
diversification, empirical evidence in the existing literature is limited. Thus, guided by
the modern portfolio theory, the resource-based view theory, and the dynamic
capabilities theory, this study sought to examine whether income diversification
mediates the relationship between intellectual capital and financial performance of
Kenyan commercial banks. Specifically, the study examined the effect of; human
capital, process capital, innovation capital, and customer capital on Kenyan commercial
banks' financial performance. The study also examined the mediating effect of income
diversification on the relationship between human capital, process capital, innovation
capital, customer capital, and commercial banks' financial performance in Kenya. The
study adopted a longitudinal and explanatory research design since it sought to establish
causal relationships between the research variables using panel data analysis. The target
population consisted of the 42 commercial banks in Kenya, and data was for the period
2008 -2017. Data was extracted from the individual bank’s audited annual reports and
the Central Bank of Kenya’s yearly reports. The data were analyzed through descriptive
and inferential statistics. The study found that human capital (β=0.377, ρ<0.05), process
capital (β=0.119, ρ<0.05), innovation capital (β=0.077, ρ<0.05), customer capital
(β=0.379, ρ<0.05), and income diversification (β=0.130, ρ<0.05) had a positive and
significant effect on the financial performance of commercial banks in Kenya. Further,
the study found that income diversification mediated the relationship between human
capital (β=0.068, ρ<0.05), process capital (β=0.048, ρ<0.05), innovation capital
(β=0.027, ρ<0.05), customer capital (β=0.068, ρ<0.05), and financial performance.
This study's findings are supported by the resource-based view theory, emphasizing the
importance of knowledge-based resources to firm performance. The portfolio theory
that posits income diversification improves banks' financial performance. The study
concluded that intellectual capital had a positive and significant effect on Kenya's
commercial banks' financial performance. Further, the research established that income
diversification partially mediated the impact of intellectual capital on commercial
banks' financial performance, making a novel contribution to the existing literature. The
study recommends that regulators relax laws limiting the extent to which banks can
engage in revenue diversification, allowing banks to reap the benefits of optimal income
diversification. Additionally, the study proposes mandatory disclosure of intellectual
capital. The study recommends that banks consider income diversification to cushion
against interest income volatility and exploit knowledge resources for managerial
implications.