搜索结果: 1-15 共查到“经济学 correlations”相关记录24条 . 查询时间(0.119 秒)
Measuring capital market efficiency: Global and local correlations structure
capital market eciency long-range dependence short-range dependence fractal dimension
2012/9/14
We introduce a new measure for the capital market eciency. The measure takes into considera-tion the correlation structure of the returns (long-term and short-term memory) and local herding behavior ...
Arbitrary Truncated Levy Flight: Asymmetrical Truncation and High-Order Correlations
Financial Stochastic processes Truncated Levy Flights High-Order Correlations NonGaussian Random Walk
2012/6/5
The generalized correlation approach, which has been successfully used in statistical radio physics to describe non-Gaussian random processes, is proposed to describe stochastic financial processes. T...
Study of statistical correlations in intraday and daily financial return time series
Study of statistical correlations intraday daily financial return time series Statistical Finance
2012/4/28
The aim of this article is to briefly review and make new studies of correlations and co-movements of stocks, so as to understand the "seasonalities" and market evolution. Using the intraday data of t...
China’s Internal Borders: Evidence from the Business Cycle Correlations across Chinese Cities
Border effect Market integration Business cycle correlation
2011/4/2
We measure the correlations between two cities’ real GDP growth rates (a measure of business cycle correlations) to capture the degree of segmentation across China’s provincial and regional borders.
Quantifying and Modeling Long-Range Cross-Correlations in Multiple Time Series with Applications to World Stock Indices
matrix theory quantify risk international investment managers
2011/3/23
We propose a modified time lag random matrix theory in order to study time lag cross-correlations in multiple time series. We apply the method to 48 world indices, one for each of 48 different countri...
Quantifying and Modeling Long-Range Cross-Correlations in Multiple Time Series with Applications to World Stock Indices
time series quantify risk international investment managers
2011/3/23
We propose a modified time lag random matrix theory in order to study time lag cross-correlations in multiple time series. We apply the method to 48 world indices, one for each of 48 different countri...
Dynamics of Stock Market Correlations
Correlation Stock Market Holography eigenvalue entropy
2010/12/6
We present a novel approach to the study the dynamics of stock market correlations. This is achieved through an innovative visualization tool that allows an investigation of the structure and dynamics...
Scaling portfolio volatility and calculating risk contributions in the presence of serial cross-correlations
portfolio market risk volatility scaling square-root-of-time rule
2010/10/21
In practice daily volatility of portfolio returns is transformed to longer holding periods by multiplying by the square-root of time which assumes that returns are not serially correlated. Under this ...
Long-term correlations and multifractal nature in the intertrade durations of a liquid Chinese stock and its warrant
Econophysics Stock and warrant Intertrade duration Correlation
2010/10/21
Intertrade duration of equities is an important financial measure characterizing the trading activities, which is defined as the waiting time between successive trades of an equity. Using the ultrahi...
Memory effect and multifractality of cross-correlations in financial markets
Econophysics Stock market
2010/10/20
An average instantaneous cross-correlation function is introduced to quantify the interaction of the financial market of a specific time. Based on the daily data of the American and Chinese stock mark...
Fluctuation-Dissipation Theory of Input-Output Interindustrial Correlations
Fluctuation-Dissipation Theory Input-Output Interindustrial Correlations
2010/11/3
The fluctuation-dissipation theory is invoked to shed light on input-output industrial correlations at a macroscopic level; it is applied to the IIP (indices of industrial production) data in Japan.
Impact of the tick-size on financial returns and correlations
Financial correlations Epps e ect Market emergence Covariance estimation
2010/10/18
We demonstrate that the lowest possible price change (tick-size) has a large impact on the structure of financial return distributions. It induces a microstructure as well as it can alter the tail beh...
How to quantify the influence of correlations on investment diversification
quantify influence correlations investment diversification
2010/12/20
When assets are correlated, benefits of investment diversification are reduced. To measure the influence of correlations on investment performance, a new quantity - the effective portfolio size - is ...
In this paper we analyzed dependencies in commodity markets investigating correlations of future contracts for commodities over the period 1998.09.01 - 2007.12.14. We constructed a minimal spanning t...
Bilateral counterparty risk valuation for interest-rate products: impact of volatilities and correlations
Counterparty Risk Arbitrage-Free Credit Valuation Adjustment Interest Swaps Interest Rate Derivatives
2010/11/2
The purpose of this paper is introducing rigorous methods and formulas for bilateral counterparty risk credit valuation adjustments (CVA's) on interest-rate portfolios. In
doing so, we summarize the ...