Browsing by Author "Nyangara, Davies"

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    An Empirical Test of the Validity of the Capital Asset Pricing Model on the Zimbabwe Stock Exchange
    (2016) Nyangara, Melody; Nyangara, Davies; Ndlovu, Godfrey; Tyavambiza, Takawira
    We test the empirical validity of the capital asset pricing model (CAPM) on the Zimbabwe Stock Exchange (ZSE) using cross-sectional stock returns on 31 stocks listed on the ZSE between March 2009 and February 2014. We conclude that, although the explanatory power of beta tends to fall rapidly for prediction horizons >6 months, beta significantly explains average monthly stock returns on the ZSE. Tests to validate the CAPM reject its validity for the ZSE however, primarily due to liquidity and skewness anomalies. We nevertheless fail to detect any size effects. There is encouraging evidence to suggest that the CAPM performs reasonably well in predicting average monthly returns over prediction horizons of between 3 and 6 months. We recommend that investors and analysts must exercise extreme caution in applying the CAPM. Furthermore, we discourage strategies based on the existence of a size premium on the ZSE. Instead, investors may consider neglected and negatively skewed stocks, albeit over appropriate horizons. Further research on other African Stock Markets will help verify if the optimal performance range of the CAPM is indeed 3-6 months. Development of standard continental proxy market portfolios will also improve the estimation of betas and enhance results of cross-country tests of the CAPM.
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    Family Business Research through the Eyes of a Lender: A Cognitive Framework for Interpreting Research Findings on Family Firms
    (2014-03) Nyangara, Davies
    Whereas most extant studies comparing the performance of family firms relative to non-family firms document contradicting results, only a rather limited number of recent studies have attempted to use family firm governance structures to reconcile the conflicting empirical findings. This paper fills this gap by developing a cognitive framework that connects family firm governance, resource endowment, and resource adaptation with a firm’s static default orientation. The cognitive framework is then used to propose lending criteria to a typical lender, and also to generate theoretical propositions regarding access to and cost of debt finance for different types of family firms. Apart from providing insights to lenders on the theoretical default characteristics of different types of family firms (and not family firms in general), the paper also presents a theoretical benchmark for the analysis of empirical findings on debt financing in family firms as well as observed default behavior among family firms