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Author: Kyriakos Chourdakis
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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Book Description
This paper derives a general equilibrium option-pricing model for a European call assuming that the economy is exogenously driven by a dividend process following Hamilton's (1989) Markov regime switching model. The derived formula is used to investigate if the European call option prices are consistently priced with the stock market prices. This is done by obtaining the implied risk aversion preferences, based on traded option prices data.
Author: Kyriakos Chourdakis
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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Book Description
This paper derives a general equilibrium option-pricing model for a European call assuming that the economy is exogenously driven by a dividend process following Hamilton's (1989) Markov regime switching model. The derived formula is used to investigate if the European call option prices are consistently priced with the stock market prices. This is done by obtaining the implied risk aversion preferences, based on traded option prices data.
Author: K. M. Chourdakis
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 31
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Author: Jian Chen
Publisher: Springer
ISBN: 9811074283
Category : Business & Economics
Languages : en
Pages : 163
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Book Description
This book mainly addresses the general equilibrium asset pricing method in two aspects: option pricing and variance risk premium. First, volatility smile and smirk is the famous puzzle in option pricing. Different from no arbitrage method, this book applies the general equilibrium approach in explaining the puzzle. In the presence of jump, investors impose more weights on the jump risk than the volatility risk, and as a result, investors require more jump risk premium which generates a pronounced volatility smirk. Second, based on the general equilibrium framework, this book proposes variance risk premium and empirically tests its predictive power for international stock market returns.
Author: Günter Bamberg
Publisher: Springer Science & Business Media
ISBN: 3642709958
Category : Business & Economics
Languages : en
Pages : 233
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Author: Mark Broadie
Publisher:
ISBN:
Category :
Languages : en
Pages :
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In this paper, we consider American option contracts when the underlying asset has stochastic dividends and stochastic volatility. We provide a full discussion of the theoretical foundations of American option valuation and exercise boundaries. We show how they depend on the various sources of uncertainty which drive dividend rates and volatility, and derive equilibrium asset prices, derivative prices and optimal exercise boundaries in a general equilibrium model. The theoretical models yield fairly complex expressions which are difficult to estimate. We therefore adopt a nonparametric approach which enables us to investigate reduced forms. Indeed, we use nonparametric methods to estimate call prices and exercise boundaries conditional on dividends and volatility. Since the latter is a latent process, we propose several approaches, notably using EGARCH filtered estimates, implied and historical volatilities. The nonparametric approach allows us to test whether call prices and exercise decisions are primarily driven by dividends, as has been advocated by Harvey and Whaley (1992a,b) and Fleming and Whaley (1994) for the OEX contract, or whether stochastic volatility complements dividend uncertainty. We find that dividends alone do not account for all aspects of call option pricing and exercise decisions, suggesting a need to include stochastic volatility.
Author: Warren Bernard Bailey
Publisher:
ISBN:
Category : Stock price indexes
Languages : en
Pages : 22
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Author: Richard J. Rendleman (Jr.)
Publisher:
ISBN:
Category : Stock options
Languages : en
Pages : 306
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Book Description
Author: Luca Benzoni
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 62
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Book Description
Prior to the stock market crash of 1987, Black-Scholes implied volatilities of S & P 500 index options were relatively constant across moneyness. Since the crash, however, deep out-of-the-money S & P 500 put options have become 'expensive' relative to the Black-Scholes benchmark. Many researchers (e.g., Liu, Pan and Wang (2005)) have argued that such prices cannot be justified in a general equilibrium setting if the representative agent has 'standard preferences' and the endowment is an i.i.d. process. Below, however, we use the insight of Bansal and Yaron (2004) to demonstrate that the 'volatility smirk' can be rationalized if the agent is endowed with Epstein-Zin preferences and if the aggregate dividend and consumption processes are driven by a persistent stochastic growth variable that can jump. We identify a realistic calibration of the model that simultaneously matches the empirical properties of dividends, the equity premium, the prices of both at-the-money and deep out-of-the-money puts, and the level of the risk-free rate. A more challenging question (that to our knowledge has not been previously investigated) is whether one can explain within a standard preference framework the stark regime change in the volatility smirk that has maintained since the 1987 market crash. To this end, we extend the model to a Bayesian setting in which the agent updates her beliefs about the average jump size in the event of a jump. Note that such beliefs only update at crash dates, and hence can explain why the volatility smirk has not diminished over the last eighteen years. We find that the model can capture the shape of the implied volatility curve both pre- and post-crash while maintaining reasonable estimates for expected returns, price-dividend ratios, and risk-free rates.
Author: Richard James Rendleman
Publisher:
ISBN:
Category : Restricted stock options
Languages : en
Pages : 300
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Book Description
Author: Robert A. Jarrow
Publisher: McGraw-Hill/Irwin
ISBN:
Category : Business & Economics
Languages : en
Pages : 268
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Book Description
