A股股指期货的价格发现能力研究

本文以新加坡新华富时A50股指期货和内地仿真交易的沪深300股指期货为对象。研究A股股指期货的价格发现能力。本文利用Granger因果检验和误差修正模型等方法,实证检验发现新华富时A50股指期货和沪深300股指期货仿真交易均表现出现货价格领先于期货价格的现象。并未表现出价格发现能力。     

A股股指期货的价格发现能力研究

该文以新加坡新华富时A50股指期货和内地仿真交易的沪深300股指期货为对象,研究A股股指期货的价格发现能力.本文利用Granger因果检验和误差修正模型等方法,实证检验发现新华富时A50股指期货和沪深300股指期货仿真交易均表现出现货价格领先于期货价格的现象,井未表现出价格发现能力.     

沪深300股指期货价格发现功能的实证研究

本文利用协整检验、向量误差修正模型以及脉冲响应和方差分解方法,对沪深300股指期货对现货市场的价格发现功能进行了实证研究.结果表明,现货价格在长期内引导沪深300股指期货价格,沪深300股指期货市场在短期和长期内对现货市场的价格发现功能都大于现货市场的价格发现功能,但是这种作用并不是很明显(期货市场对期货市场和现货市场价格的形成大约贡献65％～70％).     

沪深300指数与股指期货价格变化关系的检验

在沪深300股指期货推出两年以后,为了验证期货市场的价格发现功能,本文利用VAR模型对沪深300股指期货和现货价格的每分钟收益率序列实际数据进行检验.实证检验结果显示期货价格变化对未来现货价格变化有显著影响,持续时间可达5分钟以上,而现货价格对期货价格变化没有显著影响.因此,沪深300指数期货市场已经发挥了较强的价格发现功能.同时,我们发现对股指期货和现货市场而言,VAR模型具有较强的稳定性,在利用历史数据预测未来指数价格变化中有较强的实用价值.     

沪深300股指期货市场价格发现功能研究

本文利用ADF检验,协整检验,误差修正模型,格兰杰因果检验和脉冲响应方法,对沪深300股指期货对现货市场的价格发现功能进行了实证研究。结果表明现货价格在长期内引导沪深300股指期货价格,沪深300股指期货市场在短期和长期内对现货市场的价格发现功能都大于现货市场的价格发现功能,但是这种作用并不是很明显。     

沪深300股指期货与现货市场的非线性信息溢出与价格发现功能研究

采用线性与非线性Granger因果检验、协整检验和VECM模型,研究了沪深300股指期货和现货市场的线性与非线性信息溢出,并检验了期货市场的价格发现功能发挥情况。研究结果显示:线性信息溢出方面,沪深300股指期货市场对现货市场只有线性均值信息溢出,现货市场对期货市场只存在线性方差信息溢出;非线性信息溢出方面,两个市场之间不存在非线性均值信息溢出,不过二者之间存在显著的非线性方差信息溢出;沪深300股指期、现货市场之间存在着长期均衡的关系,不过不同于成熟市场中期货市场在价格发现方面居于主导地位的结论,我国股指现货市场在价格发现方面占主导地位,而期货市场处于从属地位。     

沪深300股指期货市场与现货市场联动性及引导关系实证分析

该文借助计量经济学平稳检验、葛兰杰因果检验、协整检验及自回归向量误差纠正模型(VECM),对中国沪深300股指期货市场与现货市场时间序列数据作实证分析.研究结果表明,沪深300股指期现货市场波动相互影响,互为葛兰杰因果关系;沪深300股指期货和现货之间呈长期稳定的协整关系;无论从长期还是短期来看,股指期货市场对股票现货市场的作用均较大;沪深300股指期货是现货下跌的引领者而非推动者.     

沪深300股指现货和期货市场相互影响的发展趋势

从2006年的模拟股指期货交易到2009年9月中金所推出沪深300股指期货,股指期货对现货市场的影响如何？从量、波动率和分布方面来说,股指期货推出后,现货市场产生了显著变化.在现货市场和期货市场的价格发现功能方面,很多研究人员对不同时问段的样本数据进行了实证研究,本文综合其它学者的研究成果和2011年的数据的实证检验,从实证的结果发现期货市场的价格发现功能在增强.A+H等特有股本结构对结果影响不大.本文研究了年际间期货市场和现货市场相互影响的发展趋势,旨在提供一些研究参考.     

股指期货与现货指数的波动溢出效应

以沪深300现货指数与沪深300股指期货指数的月度数据作为研究对象,基于HP滤波分析、Granger因果性检验、向量自回归模型等方法研究了股指期货与股票现货市场间的波动溢出效应,结果表明沪深300股指期货风险与沪深300指数之间不仅存在长期的均衡关系,同时两市场具有双向的波动溢出效应,股指期货市场的波动溢出强于股票现货市场的波动溢出。     

大陆与台湾股指期货价格发现功能比较研究

本文利用日内15分钟交易数据,对大陆与台湾股指期货的价格发现功能进行了比较,发现沪深300股指期货和现货间存在双向价格引导关系,但在信息传导效率上,期货领先现货,对台湾市场而言,仅存在期货对现货的单向引导关系;期货市场在长期价格发现功能中占主导地位,但台指期货的主导作用要强于沪深300股指期货。文章从投资者结构、合约设计、交易制度等影响因素分析了两岸股指期货价格发现功能的差异,并提出改善大陆股指期货价格发现功能的建议。     

A Model of Financialization of Commodities

We analyze how institutional investors entering commodity futures markets, referred to as the financialization of commodities, affect commodity prices. Institutional investors care about their performance relative to a commodity index. We find that all commodity futures prices, volatilities, and correlations go up with financialization, but more so for index futures than for nonindex futures. The equity‐commodity correlations also increase. We demonstrate how financial markets transmit shocks not only to futures prices but also to commodity spot prices and inventories. Spot prices go up with financialization, and shocks to any index commodity spill over to all storable commodity prices.     

The Lead‐Lag Relationship Between Cash and Stock Index Futures in a New Market

This paper investigates the lead‐lag relationship in daily returns and volatilities between price movements of the FTSE/ATHEX‐20 and FTSE/ATHEX Mid‐40 stock index futures and the underlying cash indices in the relatively new futures market of Greece. Empirical results show that there is a bi‐directional relationship between cash and futures prices. However, futures lead the cash index returns, by responding more rapidly to economic events than stock prices. This speed is much higher in the more liquid FTSE/ATHEX‐20 market. Moreover, results indicate that futures volatilities spill information over to the corresponding cash market volatilities in both investigated futures markets, but volatilities in the cash markets have no effect on the volatilities of futures markets. Overall, it seems that new market information is disseminated faster in the futures market compared to the stock market. This implies that the futures markets can be used as price discovery vehicles, providing further evidence that derivatives markets contribute to completing and stabilising capital markets in Greece. A further finding of this study is that futures volume and disequilibrium effects between cash and futures prices are important variables in the explanation of volatilities in cash and futures markets.     

股指期货与现货市场的关系研究

本文从市场结构、交易执行效率和市场信息传播三个方面，由浅入深地展开了期现货市场关系的梳理和分析。股指期货市场的出现，一是使得原本现货市场单轨运行的市场结构变为了期现货市场双轨运行的新结构，增加了市场稳定性；二是依托期货交易方式的独特机制，大大提高了交易执行效率；三是期货价格也因此包含了更多内容，促进了市场信息的传播与扩散。同时，股指期货的独特设计使得其非常适合在危机条件下充分发挥功能，是一个重要的风险管理工具，已经成为现代资本市场的重要组成部分和基础性的内在稳定机制。     

DID BLACK MONDAY HAVE A PERMANENT EFFECT?

Black Monday caused an immediate disruption between index futures and stock markets, but it is not clear whether it had any lasting effects. Here we examine links between the markets that are sensitive to the liquidity shortages during Black Monday. By employing a tick-by-tick transactions data set of S&P 500 index futures trades and S&P 500 equity index we calculate the spot/futures basis and basis risk, the spot/futures lead/lag relation, and the bid-ask spread. Evidence suggests that Black Monday had little continuing effect. On high-volatility days, however, index arbitrage becomes more costly as prices are more sensitive to future trades.     

Market segmentation and price differentials between A shares and H shares in the Chinese stock markets

We find that the risk premiums associated with the Hong Kong and mainland Chinese markets in a two-factor model successfully explain the cross section of returns on the A and H shares. Discounts of H-share prices relative to A-share prices are related to the contemporaneous movements of the H-share local market index relative to the A-share local market index, especially during the period of the Asian financial crisis, as well as the spread of savings rates between Hong Kong and mainland China. The evidence suggests that the risk premiums associated with the segmented A-share and H-share markets exert crucial impacts on the price differentials between the two classes of shares.     

Measuring Asset Values for Cash Settlement in Derivative Markets: Hedonic Repeated Measures Indices and Perpetual Futures

Two proposals are made that may facilitate the creation of derivative market instruments, such as futures contracts, cash settled based on economic indices. The first proposal concerns index number construction: indices based on infrequent measurements of nonstandardized items may control for quality change by using a hedonic repeated measures method, an index number construction method that follows individual assets or subjects through time and also takes account of measured quality variables. The second proposal is to establish markets for perpetual claims on cash flows matching indices of dividends or rents. Such markets may help us to measure the prices of the assets generating these dividends or rents even when the underlying asset prices are difficult or impossible to observe directly. A perpetual futures contract is proposed that would cash settle every day in terms of both the change in the futures price and the dividend or rent index for that day.     

Price Discovery,Causality and Forecasting in the Freight Futures Market

This paper investigates the causal relationship between futures and spot prices in the freight futures market. Being a thinly traded market whose underlying asset is a service, sets it apart from other markets investigated so far in the literature. Causality tests, generalised impulse response analysis and forecasting performance evaluation indicate that futures prices tend to discover new information more rapidly than spot prices. Revisions in the composition of the underlying index to make it more homogeneous, have strengthened the price discovery role of futures prices. The information incorporated in futures prices, when formulated as a VECM, produces more accurate forecasts of spot prices than the VAR, ARIMA and random-walk models, over several steps ahead. This revised version was published online in June 2006 with corrections to the Cover Date.     

Investor Sentiment,Trading Behavior and Informational Efficiency in Index Futures Markets

This paper shows that traders in index futures markets are positive feedback traders—they buy when prices increase and sell when prices decline. Positive feedback trading appears to be more active in periods of high investor sentiment. This finding is consistent with the notion that feedback trading is driven by expectations of noise traders. Consistent with the noise trading hypothesis, order flow in index futures markets is less informative when investors are optimistic. Transitory volatility measured at high frequencies also appears to decline in periods of bullish sentiment, suggesting that sentiment‐driven trading increases market liquidity.     

THE OVERNIGHT AND DAILY TRANSMISSION OF STOCK INDEX FUTURES PRICES BETWEEN MAJOR INTERNATIONAL MARKETS

Stock index futures prices for the world's major equity markets, Japan, the UK and the US, are used to examine the interaction of international equity markets. By using stock index futures prices, we avoid the nonsynchronous data problem inherent with opening and closing market averages. We find that the US is the dominant world market; overnight returns in Japan and the UK are greatly influenced by the US daily returns. In contrast, the Japanese market has no impact on the overnight or daily returns in the UK, while the UK daily performance has a small influence on Japanese overnight returns. Slight evidence of over-reaction at the opening of Japanese futures exists as the daily Nikkei returns are negatively related to the US returns.     

Arbitrage, Risk Premium, and Cointegration Tests of the Efficiency of Futures Markets

This article provides a new perspective on the efficiency of futures markets in a cointegration framework. Under the conventional risk premium hypothesis, if futures and spot prices are non-stationary, they must be cointegrated if futures markets are efficient. Alternatively, the cost-of-carry model implies that there should be a cointegration relationship among spot prices, futures prices and interest rates assuming all the series contain a unit root. Market efficiency further implies specific parameter restrictions under these two models. Using data on the futures markets for gold, silver, palladium and platinum, this article first establishes that interest rates, spot and futures prices are unit root non-stationary. The evidence on cointegration is somewhat mixed: the gold futures market is consistent with the cost-of-carry model, and the silver futures market satisfies the risk premium hypothesis, but the evidence for the other two markets is inconclusive.