Do Time-Varying Betas Help in Asset Pricing? Evidence from Borsa Istanbul

Berk Yayvak, Levent Akdeniz and Aslihan Altay-Salih

Emerging Markets Finance and Trade, 2015, vol. 51, issue 4, 747-756

Abstract: We investigate the time variation in the market risk of industry portfolios of Borsa Istanbul with respect to changes in economic conditions by employing the threshold CAPM. The threshold CAPM defines beta as a function of an underlying economic variable, the threshold variable, to allow beta to change between two different regimes when the threshold variable hits a certain threshold level. We use interest rate, currency basket, real effective currency index, and market volatility as candidates for the threshold variable. We find there is a significant time variation in betas with respect to changes in the currency basket level.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:mes:emfitr:v:51:y:2015:i:4:p:747-756

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DOI: 10.1080/1540496X.2015.1046346

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