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We prove the existence of statistical arbitrage opportunities for jump-diffusion models of stock prices when the jump …-size distribution is assumed to have finite moments. We show that to obtain statistical arbitrage, the risky asset holding must go to … zero in time. Existence of statistical arbitrage is demonstrated via 'buy-and-hold until barrier' strategy, where the …
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This paper documents the fact that in options markets, the (percentage) implied volatility bid-ask spread increases at an increasing rate as the option's maturity date approaches. To explain this stylized fact, this paper provides a market microstructure model for the bid-ask spread in options...
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This paper derives an equilibrium asset pricing model with endogenous liquidity risk, trading constraints, and asset price bubbles. Liquidity risk is modeled as a stochastic quantity impact on the price from trading, where the size of the impact depends on trade size. Asset price bubbles are...
Persistent link: https://www.econbiz.de/10012929504
This paper derives an equilibrium asset pricing model with endogenous liquidity risk, portfolio constraints, and asset price bubbles. Liquidity risk is modeled as a stochastic quantity impact on the price from trading, where the size of the impact depends on trade size. Asset price bubbles are...
Persistent link: https://www.econbiz.de/10012929509