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Diversity and Arbitrage in a Regulatory Breakup Model
Diversity Arbitrage Regulatory Breakup Model
2010/4/27
In 1999 Robert Fernholz observed an inconsistency between the normative assumption of existence of an equivalent martingale measure (EMM) and the empirical reality of diversity in equity markets. We e...
Hedging under arbitrage
arbitrage delta hedging
2010/4/27
It is shown that delta hedging provides the optimal trading strategy in terms of minimal required initial capital to replicate a given terminal payoff in a continuous-time Markovian context. This hold...
Arbitrage Opportunities in Misspecified Stochastic volatility Models
stochastic volatility model misspecification volatility arbitrage butterfly riskreversal SABR model
2010/4/27
There is vast empirical evidence that given a set of assumptions on the real-world dynamics of an asset, the European options on this asset are not efficiently priced in options markets, giving rise t...
An arbitrage strategy allows a financial agent to make certain profit out of nothing, i.e., out of zero initial investment. This has to be disallowed on economic basis if the market is in equilibrium ...
Arbitrage Bounds for Weighted Variance Swap Prices
Arbitrage Bounds Weighted Variance Swap Prices
2010/4/27
Consider a frictionless market trading a finite number of co-maturing European call and put options written on a risky asset plus an instrument with path-dependent payoff known as a weighted variance ...