搜索结果: 31-45 共查到“经济学 volatility”相关记录133条 . 查询时间(0.138 秒)
Fund Flow Volatility and Performance
Open-end mutual funds performance differences cash holdings
2011/8/21
This paper provides a detailed analysis of the impact of daily mutual fund flow volatility on fund performance. I document a significant negative relationship between the volatility of daily fund flow...
Implied Volatility Surface: Construction Methodologies and Characteristics
Heston model and its extensions Carr and Wu approach Arbitrage-free algorithms
2011/7/19
The implied volatility surface (IVS) is a fundamental building block in computational finance.We provide a survey of methodologies for constructing such surfaces. We also discuss various topics which ...
Volatility of Power Grids under Real-Time Pricing
Real-Time Pricing Volatility Lyapunov Analysis
2011/7/5
The paper proposes a framework for modeling and
analysis of the dynamics of supply, demand, and clearing prices
in power system with real-time retail pricing and information
asymmetry. Real-time re...
A Linear Relationship between Market Prices of Risks and Risk Aversion in Complete Stochastic Volatility Models
von-Neumann Morgenstern utility asset risk linear combination
2011/4/2
Considering a production economy with an arbitrary von-Neumann Morgenstern utility, this paper derives a general equilibrium relationship between the market prices of risks and market risk aversion un...
Ambiguous Volatility, Possibility and Utility in Continuous Time
ambiguity uncertain volatility option pricing recursive utility stochastic differential utility G-expectation G-Brownian motion nonequivalent measures uncertain possibility quasisure analysis
2011/3/30
We formulate a model of utility for a continuous time framework that captures the decision-maker's concern with ambiguity or model uncertainty. The main novelty is in the range of model uncertainty th...
Using a time-varying approach, this paper examines the dynamics of volatility in the REIT sector. The results highlight the attractiveness and suitability of using GARCH based approaches in the modeli...
COMMODITY PRICE VOLATILITY: THE IMPACT OF COMMODITY INDEX TRADERS
COMMODITY PRICE VOLATILITY: THE IMPACT OF COMMODITY INDEX TRADERS
2014/4/11
The dramatic rise in crop prices that occurred in the fall of 2006 was the beginning of an unprecedented level of volatility in agricultural markets. Corn prices for most of this decade have fluctuate...
Volatility of agrarian markets aimed at the price development
world prices volatility supply demand agri-food commodities
2014/2/27
Significant price volatility has been observed at the world agri-food markets in these latter years. It has been caused by the triggers of the so-called market shocks that negatively influenced the st...
Modeling and forecasting volatility in global food commodity prices
volatility forecast fat-tail distribution food commodities
2014/2/27
To capture the volatility in the global food commodity prices, we employed two competing models, the thin tailed the normal distribution, and the fat-tailed Student t-distribution models. Results base...
Arbitrage hedging strategy and one more explanation of the volatility smile
step-like contrast structure semi-linear parabolic equation arbitrage option hedging strategy volatility smile
2011/3/23
We present an explicit hedging strategy, which enables to prove arbitrageness of market incorporating at least two assets depending on the same random factor. The implied Black-Scholes volatility, com...
The Cartier-Perrin theorem, which was published in 1995 and is expressed in the language of nonstandard analysis, permits, for the first time perhaps, a clear-cut mathematical definition of the volati...
We investigate financial markets under model risk caused by uncertain volatilities. For this purpose we consider a financial market that features volatility uncertainty. To have a mathematical consist...
In the Black-Scholes context we consider the probability distribution function (PDF) of financial returns implied by volatility smile and we study the relation between the decay of its tails and the ...
On Calibrating Stochastic Volatility Models with time-dependent Parameters
Calibrating Stochastic Volatility Models time-dependent Parameters
2010/10/22
We consider stochastic volatility models using piecewise constant parameters. We suggest a hybrid optimization algorithm for fitting the models to a volatility surface and provide some numerical resu...
Forecasting the Quantiles of Daily Equity Returns Using Realized Volatility: Evidence from the Czech Stock Market
Intraday data heterogeneous autoregressive model
2010/12/6
In this study, we evaluate the quantile forecasts of the daily equity returns on three of the most liquid stocks traded on the Prague Stock Exchange. We follow the recent findings that consider the po...