搜索结果: 1-12 共查到“经济学 Stock price”相关记录12条 . 查询时间(0.142 秒)
Stock Price Fragility
Financial Liquidity Stocks Price Market Transactions Ownership Risk and Uncertainty
2015/4/22
We investigate the relationship between ownership structure of financial assets and non-fundamental risk. An asset is fragile if its owners collectively have to buy or sell. Such assets are susceptibl...
A quantum mechanical model for the relationship between stock price and stock ownership
quantum mechanical model relationship between stock price stock ownership
2012/9/14
The trade of a fixed stock can be regarded as the basic process that measures its momentary price. The stock price is exactly known only at the time of sale when the stock is between traders, that is,...
Stock Price Processes with Infinite Source Poisson Agents
fractional Brownian motion arbitrage stock price model stable L´ evy motion long-range dependence self-similarity
2011/7/5
We construct a general stochastic process and prove weak convergence results. It
is scaled in space and through the parameters of its distribution. We show that
our simplified scaling is equivalent ...
Maximum entropy distribution of stock price fluctuations
Maximum entropy distribution stock price fluctuations
2011/7/4
The principle of absence of arbitrage opportunities allows obtaining the distribution of
stock price fluctuations by maximizing its information entropy. This leads to a physical
description of the u...
Bounds on Stock Price probability distributions in Local-Stochastic Volatility models
Law of the spot price local-stochastic volatility moment explosion
2010/10/20
We show that in a large class of stochastic volatility models with additional skew-functions (local-stochastic volatility models) the tails of the cumulative distribution of the log-returns behave as...
Two-sided estimates for stock price distribution densities in jump-diffusion models
Stochastic volatility models Jump-diffusion models Stock
2010/10/20
We consider uncorrelated Stein-Stein, Heston, and Hull-White models and their perturbations by compound Poisson processes with jump amplitudes distributed according to a double exponential law. Simila...
New procedures for testing whether stock price processes are martingales
betting strategy efficient market hypothesis (EMH) game-theoretic probability sequential test
2010/11/1
We propose procedures for testing whether stock price processes are martingales based on limit order type betting strategies. We first show that the null hypothesis of martingale property of a stock p...
Recovering a time-homogeneous stock price process from perpetual option prices
time-homogeneous stock price perpetual option prices
2010/10/29
It is well-known how to determine the price of perpetual American options if the underlying stock price is a time-homogeneous diffusion.In the present paper we consider the inverse problem, i.e. given...
Asymptotic Behavior of the Stock Price Distribution Density and Implied Volatility in Stochastic Volatility Models
true martingales one-dimensional diffusions separating times financial bubbles
2010/11/1
The stochastic exponential Zt = exp{Mt − M0 − (1/2)hM,Mit} of a continuous local martingale M is itself a continuous local martingale. We give a necessary and sufficient condition for the ...
A Theory for Market Impact: How Order Flow Affects Stock Price
Theory Market Impact Order Flow Affects Stock Price
2010/12/17
It is known that the impact of transactions on stock price (market impact) is a concave function of the size of the order, but there exists little quantitative theory that suggests why this is so. I ...
Stock price jumps: news and volume play a minor role
Stock price jumps news volume play minor role
2010/12/17
In order to understand the origin of stock price jumps, we cross-correlate high-frequency time series of stock returns with different news feeds. We find that neither idiosyncratic news nor market wid...
The Only Game in Town: Stock-Price Consequences of Local Bias
The Only Game in Town Stock-Price Consequences Local Bias
2014/3/18
Theory suggests that, in the presence of local bias, the price of a stock should be decreasing in the ratio of the aggregate book value of firms in its region to the aggregate risk tolerance of invest...