BEHAVIORAL INVESTMENT TRAPS, FUND SIZE AND PORTFOLIO PERFORMANCE OF MUTUAL FUNDS IN KENYA.
Abstract
This study investigated the decline in financial performance observed among mutual funds
in Kenya, focusing on the potential role of behavioral investment traps in influencing
portfolio trends. The objectives were to evaluate the effects of herd behavior, loss aversion,
overconfidence, and the disposition effect on mutual fund performance, and to examine
how fund size moderates the relationship between these behavioral factors and portfolio
outcomes. The results of this study will inform decision making by the policy makers. This
will be done through provision of data and evidence to support policies and strategies that
enhance financial performance. The results of this study will also guide on resource
allocation as well as enhancing accountability by investors and it will also assist
academicians to further their knowledge in the field of finance. Prominent theories include
the Prospect Theory which is the main theory which explores how investors perceive gains
and losses asymmetrically; Modern Portfolio Theory (MPT), which emphasizes
diversification to optimize returns for a given level of risk; the Efficient Market Hypothesis
(EMH), which postulates that market prices reflect all available information; and the
Capital Asset Pricing Model (CAPM), which provides a framework for assessing risk and
expected return in investment decisions. The population in this study comprised all 16
registered Kenya‘s mutual funds in the country. A causal research design was employed,
utilizing secondary data from mutual funds’ financial statements spanning 2011 to 2021.
Data analysis was conducted using multiple regression analysis model, employing panel
regression methods with fixed and random effects models. Stationarity was tested using
unit root tests, including the Levin-Lin-Chu, Augmented Dickey-Fuller, Im Pesaran and
Shin, Philips-Perron, and Hadri 2000 tests. Normality was assessed using the Jarque-Bera
test, and multicollinearity was evaluated through pairwise correlation analysis. The
Hausman test was used to differentiate between fixed and random effects models, while
skewness and kurtosis tests confirmed proper variable distribution. The findings revealed
that herd behavior had a positive but insignificant impact on mutual funds’ financial
performance (regression coefficient: 0.0004163). Loss aversion demonstrated a positive
and significant effect (regression coefficient: 0.0627507), as did overconfidence, which
had a strong positive influence (regression coefficient: 2.7295960). Conversely, the
disposition effect negatively impacted financial performance significantly (regression
coefficient: -0.5455628). The study concludes that overconfidence plays a critical role in
shaping mutual fund performance and recommends emphasizing this factor in financial
investment decision-making processes. Results indicate that fund size with a coefficient of
+0.224458 has a positive moderating effect on the relationship between herd behavior and
financial performance of mutual funds in Kenya. Fund size with a coefficient of -0.008639
has a negative moderating effect on the relationship between loss aversion and financial
performance of mutual funds in Kenya. Fund size with a coefficient of -3.023683 has a
negative moderating effect on the relationship between overconfidence and financial
performance of mutual funds in Kenya and fund size with a coefficient of +1.056512 has
a positive moderating effect on the relationship between disposition effect and financial
performance of mutual funds in Kenya.
