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1.
    
This paper focuses on the liquidity of electronic stock markets applying a sequential estimation approach of models for volume duration with increasing threshold values. A modified ACD model with a Box–Tukey transformation and a flexible generalized beta distribution is proposed to capture the changing cluster structure of duration processes. The estimation results with German XETRA data reveal the market's absorption limit for high volumes of shares, expanding the time costs of illiquidity when trading these quantities.  相似文献   

2.
    
We present new evidence on the structure of interbank connections across key markets: derivatives, marketable securities, repo, unsecured lending and secured lending. Taken together, these markets comprise two networks: a network of interbank exposures and a network of interbank funding. Network structure varies across and within these two networks, for reasons related to markets’ different economic functions. Credit risk and liquidity risk therefore propagate in the interbank system through different network structures. We discuss the implications for financial stability.  相似文献   

3.
    
We present an empirical study of the intertwined behaviour of members in a financial market. Exploiting a database where the broker that initiates an order book event can be identified, we decompose the correlation and response functions into contributions coming from different market participants and study how their behaviour is interconnected. We find evidence for the following. (1) Brokers are very heterogeneous in liquidity provision—some appear to be primarily liquidity providers while others are primarily liquidity takers. (2) The behaviour of brokers is strongly conditioned on the actions of other brokers. In contrast, brokers are only weakly influenced by the impact of their own previous orders. (3) The total impact of market orders is the result of a subtle compensation between the same broker pushing the price in one direction and the liquidity provision of other brokers pushing it in the opposite direction. These results enforce the picture of market dynamics being the result of the competition between heterogeneous participants, interacting to form a complex market ecology.  相似文献   

4.
    
We present a new profitable trading and risk management strategy with transaction cost for an adaptive equally weighted portfolio. Moreover, we implement a rule-based expert system for the daily financial decision-making process using the power of spectral analysis. We use several key components such as principal component analysis, partitioning, memory in stock markets, percentile for relative standing, the first four normalized central moments, learning algorithm, and switching among several investment positions consisting of short stock market, long stock market and money market with real risk-free rates. We find that it is possible to beat the proxy for the equity market without short selling for 168 S&P 500-listed stocks during the 1998–2008 period and 213 Russell 2000-listed stocks during the 1995–2007 period. Our Monte Carlo simulation for both the various set of stocks and the interval of time confirms our findings.  相似文献   

5.
6.
    
The Nasdaq stock market provides information about buying and selling interest in its limit order book. Using a vector autoregressive model of trades and returns, I assess the effect of the entire order book on the next tick. I also determine the influence of individual market makers and electronic networks and find evidence that the identity of market participants can be useful information. Finally, I produce a set of dynamic market price responses to buy and sell orders, and I find that these estimates vary with standard measures of liquidity.  相似文献   

7.
    
Research on the use of financial statement information for forecasting profitability has two objectives: (i) to generate improved forecasts of profitability and accurate estimates of firm value; and (ii) to identify market inefficiencies with respect to financial statement information. For these areas of research, this article describes the evolution, provides examples and shares implications of the research. It also discusses opportunities for future research. The article highlights that financial statement analysis research has slowly evolved and has received limited attention from academics. The article argues that there are vast opportunities for impactful research on fundamental analysis and market inefficiencies.  相似文献   

8.
    
This paper examines the correlation and the dependence patterns of the Qatar stock market with other markets using copula statistical theory and exploiting new datasets covering the period August 1998 to June 2018. To examine the crisis –specific change in the average degree of dependence we decomposed the data into the time periods before and after oil price shocks and the 2017 political crisis among the Gulf Cooperation Council members (i.e. the Qatari blockade). Our findings from the static copula modelling show that the correlations between the Qatari and the other stock markets significantly change after the oil price and the blockade crisis as well. The degree of change in the correlation is time varying and differs from county-group to another. Moreover, our findings reveals that the 2008 global financial crisis has a stronger impact than the price shocks and political crisis. The findings of the paper are of interest and allow for formulating a reliable and dynamic portfolio design framework for investors and risk managers.  相似文献   

9.
    
We examine the dynamics of the signed-spillover across financial markets using historical decomposition approach. By incorporating Markov-switching framework into the VAR model, this paper assesses the dynamics of signed-spillover during turbulent periods and period of tranquillity. Additionally, this approach enables us to detect the source and direction of the spillover and identify its signs. We show that this approach outperforms the classical single-regime spillover estimation by distinguishing shocks under different economic conditions. Specifically, we assess spillovers in global financial markets using realised variance between January 1999 and December 2017. Our empirical findings clearly indicate that spillovers are intense during period of turbulence and moderate during periods of tranquillity.  相似文献   

10.
    
A unit volume zero-intelligence (ZI) model is defined and the distribution of its L1 process is recursively described. Further, a generalized ZI model allowing non-unit market orders, shifts of quotes and general in-spread events is proposed and a formula for the conditional distribution of its quotes is given, together with a formula for price impact. For both the models, MLE estimators are formulated and shown to be consistent and asymptotically normal. Consequently, the estimators are applied to data of six US stocks from nine electronic markets. It is found that more complex variants of the models, despite being significant, do not give considerably better predictions than their simple versions with constant intensities.  相似文献   

11.
    
For financial risk management it is of vital interest to have good estimates for the correlations between the stocks. It has been found that the correlations obtained from historical data are covered by a considerable amount of noise, which leads to a substantial error in the estimation of the portfolio risk. A method to suppress this noise is power mapping. It raises the absolute value of each matrix element to a power q while preserving the sign. In this paper we use the Markowitz portfolio optimization as a criterion for the optimal value of q and find a K/T dependence, where K is the portfolio size and T the length of the time series. Both in numerical simulations and for real market data we find that power mapping leads to portfolios with considerably reduced risk. It compares well with another noise reduction method based on spectral filtering. A combination of both methods yields the best results.  相似文献   

12.
    
Evolving volatility is a dominant feature observed in most financial time series and a key parameter used in option pricing and many other financial risk analyses. A number of methods for non-parametric scale estimation are reviewed and assessed with regard to the stylized features of financial time series. A new non-parametric procedure for estimating historical volatility is proposed based on local maximum likelihood estimation for the t-distribution. The performance of this procedure is assessed using simulated and real price data and is found to be the best among estimators we consider. We propose that it replaces the moving variance historical volatility estimator.  相似文献   

13.
    
International equity markets linkages are characterized by nonlinear dependence and asymmetries. We investigate shifts in long run comovements in stock markets by means of an ‘interrupted’ Markov switching cointegration specification. This flexible approach allow us to study to what extent documented changes in global integration are permanent, or whether market linkages are subject to changes. Using an illustrative sample from 1980 to 2012 for USA, UK and Hong Kong stock price indices, we find evidence of interrupted cointegration across these markets between May 1997 and April 2002, which is consistent with the decoupling of stock prices from fundamentals during the dot-com bubble.  相似文献   

14.
In this paper I offer the Theory of Fair Markets (TFM) as an alternative to the ubiquitous CAPM/EMH that has been ruling unabated academia's financial economics for the last four decades. According to the TFM what counts is whether society is better off with a market system which is carefully monitored and corrected by a democratically elected government and social, labor, and other laws that serve as its infrastructure than with the notion of laissez faire. Admittedly, the theory is in its infancy and as such it is subject to both evolutionary changes/modification and exploratory empirical research. Without a doubt, it is also subject to criticism. Nevertheless, I contend that the EMH should be scrutinized and abandoned, because it is a reality-retardant theory, falsely implying Pareto optimality.  相似文献   

15.
论金融统计中金融资产的分类调整   总被引:1,自引:0,他引:1  
本文首先介绍了目前金融统计中金融资产的分类与建议财务会计中的金融资产分类.然后给出建议的金融统计中金融资产的分类调整结果,重点介绍了其中的各个金融资产类型,还针对金融资产流量核算、金融存量核算、金融市场统计等问题提出统一协调的建议。论文最后作了总结,展望了后续研究。  相似文献   

16.
一国金融体系的改革,都是以金融市场化为目标的.而利率作为衡量投资行为的价格成本,影响着金融市场交易活动的方方面面.因此,利率市场化是金融市场化改革过程的核心环节.通过分析以利率为核心的金融市场化发展趋势以及改革模式,找出利率市场化所产生的问题.着重研究利率市场化产生的金融风险以及对金融危机的诱导机理,进而完善利率市场化对货币政策的传导作用,并为维护我国利率市场化条件下的金融安全提供对策与建议.  相似文献   

17.
    
Understanding how financial crises spread is important for policy-makers and regulators in order to take adequate measures to prevent or contain the spread of these crises. This paper will test whether there was contagion of the subprime financial crisis to the European stock markets of the NYSE Euronext group (Belgium, France, the Netherlands and Portugal) and, if evidence of contagion is found, it will determine the investor-induced channels through which the crisis propagated. We will use copula models for this purpose. After assessing whether there is evidence of financial contagion in the stock markets, we will examine whether the ‘wealth constraints’ transmission mechanism prevails over the ‘portfolio rebalancing’ channel. An additional test looks at the interaction between stock and bond markets during the crisis and allows us to determine if the transmission occurred due to the ‘cross market rebalancing’ channel or the ‘flying to quality’ phenomenon. The tests suggest that (i) financial contagion is present in all analyzed stock markets, (ii) a ‘portfolio rebalancing’ channel is the most important crisis transmission mechanism, (iii) and the ‘flight-to-quality’ phenomenon is also present in all analyzed stock markets.  相似文献   

18.
Measuring financial stress in a developed country: An application to Canada   总被引:1,自引:0,他引:1  
This paper develops an index of financial stress for the Canadian financial system. It is a continuous variable with a spectrum of values, where extreme values are called financial crises. An internal Bank of Canada survey is used to condition the choice of variables. The authors show that alternative measures of financial crisis suggested by the literature do not accurately reflect the Canadian experience, while several measures developed in this paper are more representative and are thus likely better suited to a developed financial system. An accurate characterization of stress is a prerequisite for any researcher attempting to forecast financial crises.  相似文献   

19.
欧洲金融市场一体化进程中的金融中心研究   总被引:1,自引:0,他引:1  
欧洲金融市场一体化目前已经达到了非常高的程度。对欧洲金融市场一体化进程中的金融中心的研究表明,金融市场一体化并不会导致欧洲只存在一个(或少数几个)金融中心,尽管欧洲金融中心体系内各层次金融中心的功能和作用有了调整,但欧洲多层次金融中心体系并没有因此而受到削弱。中国各区域之间同样正经历着一个金融市场日益融合的过程,因而欧洲的经验对于中国金融中心建设具有较强的借鉴意义。  相似文献   

20.
We investigate the relative importance of various bankruptcy predictors commonly used in the existing literature by applying a variable selection technique, the least absolute shrinkage and selection operator (LASSO), to a comprehensive bankruptcy database. Over the 1980–2009 period, LASSO admits the majority of Campbell et al. (2008) predictive variables into the bankruptcy forecast model. Interestingly, by contrast with recent studies, some financial ratios constructed from only accounting data also contain significant incremental information about future default risk, and their importance relative to that of market-based variables in bankruptcy forecasts increases with prediction horizons. Moreover, LASSO-selected variables have superior out-of-sample predictive power and outperform (1) those advocated by Campbell et al. (2008) and (2) the distance to default from Merton’s (1974) structural model.  相似文献   

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