Abstract

http://ssrn.com/abstract=2199749
 
 

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Stochastic Idiosyncratic Cash Flow Risk and Real Options: Implications for Stock Returns


Harjoat Singh Bhamra


University of British Columbia (UBC) - Sauder School of Business

Kyung Hwan Shim


University of New South Wales (UNSW)

May 30, 2016

2015 Society for Economic Dynamics in Warsaw
2015 American Finance Association Annual Meetings in Boston
2014 European Finance Association Annual Meetings in Lugano
2013 Adam Smith Asset Pricing Conference in Oxford
2013 China International Finance Conference in Shanghai
2013 Northern Finance Association Annual Meetings in Quebec
2013 Tel Aviv Finance Conference

Abstract:     
Stocks with high idiosyncratic volatility perform poorly relative to low idiosyncratic volatility stocks. We offer a novel explanation of this anomaly based on real options, which is consistent with earlier findings on idiosyncratic volatility (the positive contemporaneous relation between firm-level stock returns and idiosyncratic volatility). Our approach is based on introducing stochastic idiosyncratic cash flow risk into an equity valuation model of firms with growth options. Within our model, a firm's systematic risk depends on the delta of its growth option. The growth option's delta is lower when idiosyncratic volatility rises, driving down the firm's systematic risk and hence its expected return -- firms with higher idiosyncratic volatility therefore have lower expected returns. Our model offers the following novel empirical predictions (i) returns correlate positively with idiosyncratic volatility during intervals between large changes in idiosyncratic volatility (the switch effect), (ii) and that the anomalies and the switch effect are stronger for firms with more real options and which undergo larger changes in idiosyncratic volatility. Empirical results support the predictions of our model.

Number of Pages in PDF File: 57

Keywords: Idiosyncratic return volatility, cross-section of stock returns, asset pricing, real options, growth options, stochastic volatility, regime switching, mixed jump-diffusion processes

JEL Classification: G00, G10, G12, G13, G19, G30, G31


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Date posted: January 12, 2013 ; Last revised: June 1, 2016

Suggested Citation

Bhamra, Harjoat Singh and Shim, Kyung Hwan, Stochastic Idiosyncratic Cash Flow Risk and Real Options: Implications for Stock Returns (May 30, 2016). 2015 Society for Economic Dynamics in Warsaw; 2015 American Finance Association Annual Meetings in Boston; 2014 European Finance Association Annual Meetings in Lugano ; 2013 Adam Smith Asset Pricing Conference in Oxford ; 2013 China International Finance Conference in Shanghai ; 2013 Northern Finance Association Annual Meetings in Quebec ; 2013 Tel Aviv Finance Conference . Available at SSRN: http://ssrn.com/abstract=2199749 or http://dx.doi.org/10.2139/ssrn.2199749

Contact Information

Harjoat Singh Bhamra
University of British Columbia (UBC) - Sauder School of Business ( email )
2053 Main Mall
Vancouver, BC V6T 1Z2
Canada
Kyung Hwan Shim (Contact Author)
University of New South Wales (UNSW) ( email )
306 Level 3 ASB
UNSW Kensington Campus
UNSW Sydney, NSW 2052
Australia
61293855852 (Phone)
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