交易者结构与市场行情：来自深圳股票市场的经验证据

证券市场微观结构理论的核心问题是证券价格的形成与决定。众多学者从不同角度探讨证券市场价格的影响因素,其中投资者结构是影响证券价格的一大重要因素。为了探讨影响中国证券市场价格的微观因素,本文使用各种类型投资者数量作为衡量投资者结构的指标,运用协整检验和Granger因果关系检验方法研究深圳股票市场中交易者结构与市场行情间的内在关系。实证结果表明,在深圳股票市场中,市场价格与个人交易者总数之间存在长期稳定的协整关系。个人交易者总数的变化与市场价格变化间存在着显著的单向因果关系,即交易者总数的变化可以通过市场价格的变化来解释。而市场价格与机构交易者总数之间既不存在长期稳定的协整关系,也不存在单向或双向的因果引致关系。     

Price changes and trading volume relationship in the Hong Kong stock market

Studies on the relationship between price changes and trading volume can provide insight into the structure of the financial market. In this paper, we will study the above topic and concentrate on the stock market of Hong Kong. The correlation between price changes and trading volume as well as that between the magnitude of price changes and trading volume will be examined. We will also check the asymmetry of the price changes and volume relationship. Moreover, we will investigate the relationship between the variance of return and trading volume. Finally, the Granger causality test of price changes and volume will be performed.     

上海燃料油期货市场运行效率实证研究

应用协整检验、Granger因果检验、套保比率计算和套保绩效检验等方法,对上海燃料油期货与现货的长期相关关系以及价格发现和套期保值功能的发挥情况进行了定量研究。结果表明,上海燃料油期货与黄埔现货之间具有长期均衡关系,二者之间是相互引导的;上海燃料油期货市场具有良好的价格发现和套期保值功能,可以为企业利用期货市场进行套期保值规避风险提供有效的支持。     

Causality of interest rate,exchange rate and stock prices at stock market open and close in Hong Kong

By an ARIMA approach and verified by the Granger causality tests, the causality of daily interest rate, exchange rate and stock prices in Hong Kong were explored for the period 1986 to 1991. Depending on the subperiods being considered, sporadic unidirectional causality from closing stock prices to interest rate, and weak bi-directional causality between stock prices and the exchange rate were found. The overall evidence, however, appears to show that the Hong Kong market efficiently incorporated much of the interest rate and exchange rate information in its price changes both at daily market close and open.The author would like to acknowledge helpful comments from two anonymous referees, helpful suggestions by Dr Daniel Cheung and research assistance from Theresa Tam. This project is supported by a research grant from the Institute of Social Studies, The Chinese University of Hong Kong.     

Price relations between export and domestic rice markets in Thailand

Many rice importing countries argue that rice exporting nations isolate their domestic markets through the use of stabilization pricing policies which cause international rice markets to become excessively volatile. For the argument to hold any weight, price transmission between exporting countries’ domestic and export markets should be unidirectional whereby export prices are driven by domestic prices but domestic prices are not affected by export prices. The study tests the hypothesis on Thailand, traditionally the world’s largest rice exporter. The results from the causality tests are not entirely clear, however the results from the impulse response functions show that while the shocks originating in the domestic market are higher in magnitude in the export market in the short-run, the shocks originating in the export market are more persistent in the domestic market. This suggests that although Thailand’s domestic policies are somewhat effective in the immediate months after the shock they allow price transmission from its export market to transfer over to its domestic market in the long-run. The results therefore imply that Thailand’s domestic pricing programs are not heavily distorting world rice markets.     

资产价格波动与实体经济稳定研究

资产价格波动影响实体经济的程度与机制,一直备受关注。与国内其他相关研究相比,本文在样本选择上突出了资产价格波动影响消费和投资的针对性。通过构建引入资产价格的局部均衡分析模型和IS-LM扩展模型,本文采用现代时间序列分析的ADF检验、Granger因果检验、Johansen协整检验、VECM检验、脉冲响应函数和预测方差分解等多种方法进行研究,揭示了我国资产价格波动与实体经济稳定之间的相关性、因果关系、影响程度、影响过程和影响机制。     

我国商品房市场量价关系的实证分析

目前对房地产市场的研究主要集中于房价,而对量价关系的研究较少。鉴于此,文章利用1998～2008年的全国商品房季度数据,对我国商品房市场量价关系进行实证研究,并得出以下结论：从长期来看,我国商品房市场的交易量与价格之间存在协整关系;因果检验显示交易量是价格的格兰杰原因,反之则不成立;通过脉冲响应函数发现外界冲击导致了量价的一致波动且交易量对外界冲击的响应比房价更敏感。     

Liquidity, Return and Order-Flow Linkages Between REITs and the Stock Market

This article represents the first exploration of liquidity and order flow spillovers across New York Stock Exchange stocks and real estate investment trusts (REITs). Impulse response functions and Granger causality tests indicate the existence of persistent liquidity spillovers running from REITs to non-REITs. Specifically, REIT liquidity indicators are forecastable from non-REIT ones, at both daily and monthly horizons. I also provide evidence of a liquidity premium inherent in REIT returns. While REIT prices appear to be set efficiently in that neither REIT nor non-REIT order flows forecast REIT returns, I find that order flows and returns in the stock market negatively forecast REIT order flows. This result is consistent with the notion that real estate markets are viewed as substitute investments for the stock market, which causes down-moves in the stock market to increase money flows to the REIT market.     

Local impacts of a global crisis: Food price transmission,consumer welfare and poverty in Ghana

This paper takes a local perspective on global food price shocks by analyzing food price transmission between regional markets in Ghana. It also assesses the impacts of food price increases on various household groups. Taking the 2007–2008 global food crisis as an example, we show that prices for domestic grain products are highly correlated with world market prices. This is true both for products for which Ghana is highly import-dependent (e.g., rice) and the products for which Ghana is self-sufficient (e.g., maize). The econometric results also show that price transmission is high between regional producer markets and markets located in the country’s largest cities, and the distance between producer and consumer markets and the size of consumer markets matter in explaining the price transmission. The welfare analysis for households as consumers shows that the effect of world food prices appears relatively modest for the country as a whole due to relatively diverse consumption patterns within country. However, the national average hides important regional differences, both between regions and within different income groups. We find that the poorest of the poor—particularly those living in the urban areas—are hardest hit by high food prices. The negative effect of the food crisis is particularly strong in northern Ghana. The main explanations for this regional variation in the price effect is the different consumption patterns and much lower per capita income levels in the North of Ghana compared to other regions in the country.     

Catch Animal Spirits in Auction: Evidence from New Zealand Property Market

Following the animal spirits theory proposed by Akerlof and Shiller, this article contributes to behavior economics by investigating the possibility of using auction sales data to capture evidence of irrational exuberance in the housing market. Using the monthly percentages of residential property auction sales for Auckland, Wellington and Christchurch regions in New Zealand from 2006 to 2015, and the exuberance testing method proposed by Phillips, Shi and Yu, we find that animal spirits have been developing in the Auckland housing market since 2013, but not in other regions. When compared to the results based on price‐to‐rent ratios, auction sales provide more meaningful results for identifying market‐wide irrational exuberance at an early stage. The causality test on price‐to‐rent ratios and auction sales volume shows that asset prices and animal spirits influence each other in the short run. In the long run, prices have significant effect on animal spirits, but not vice versa.     

Market Efficiency and Return Statistics: Evidence from Real Estate and Stock Markets Using a Present-Value Approach

This paper develops a methodology to identify asset price response to news in the framework of the Campbell–Shiller log-linear present-value equation. We further show that a slow price adjustment in real estate markets not only induces a high serial autocorrelation in excess returns, but also dampens the return volatility and the correlation with excess returns in other asset markets. Using Hong Kong real estate and stock market data, we find that the quarterly real estate price assimilates only about half the effect of market news, whereas the quarterly stock price incorporates the news fully. Our analysis identifies a cumulative price adjustment that recovers lost information in real estate returns due to market inefficiency and thereby restores the real estate return volatility and the correlation between real estate and stock markets.     

Food scare crises and price volatility: The case of the BSE in Spain

Recent incidents of contaminated food products coupled with the widespread diffusion of news by mass media and the growing social concerns about food safety, have resulted in significant food market crises. One of the most highly publicized recent food scares involved Bovine Spongiform Encephalopathy (BSE). In our analysis, we evaluate the impacts from a BSE outbreak on the price volatility transmission along the Spanish food marketing chain by using a smooth transition conditional correlation (STCC) GARCH model. Our work is the first to assess price volatility responses to food scares. Results suggest that two distinct regimes involving different price volatility behavior can be distinguished, one characterized by turbulent markets and another where markets are calming down.     

中国上海燃料油期货定价模型研究

采用协整理论及基于VAR的Grange因果关系检验与冲击反应函数方法对中国上海期货交易所燃料油期货价格作建模分析。单位根检验显示，选取的样本序列均为I（1）。Granger因果关系检验显示：美原油期货价格，新加坡180燃料油现货价格变量为燃料油期价的Granger原因；上海燃料油期货价格是黄埔现货价格的单向的Granger原因，期货价格对现货价格具有发现作用。最终作出的长期协整方程显示：美原油期货价格，新加坡180燃料油现货价格、欧元汇率与上海燃料油现货价构成长期显著的均衡关系。美原油期货价格对沪燃料油期价的弹性为0．85；新加坡180燃料油现货价格对沪燃料油期价的弹性为0．78；欧元汇率对沪燃料油期价的弹性为1．04。从最终建立动态模型来看，模型有较好的拟合及预测精度。因此，该模型对沪燃料油期价风险控制具有较好的参考作用。     

Market Structure and the Speed of Price Adjustments: Evidence Of Non-Monotonicity

Rational distributed lag and partial adjustment models are used in this paper to analyze the speed of adjustment of consumer deposit rates. Dummy variables conditioned on market concentration are added to the rational distributed lag model to test for speed of adjustment differences across high, medium, and low concentration markets. The estimated model parameters suggest low, as well as high, concentration markets exhibit slower speed of adjustment (or more price rigidity) than the medium group. Thus, the results for the rational distributed lag model estimation provide empirical evidence of a possible non-monotonic relationship between market concentration and price rigidity. This relationship is further examined within the context of a partial adjustment model by estimating the speed of adjustment parameter as a non-linear (quadratic) function of market concentration. The results support the findings derived from the estimation of the rational distributed lag model. These findings have important implications for: (1) future research that attempts to empirically estimate relationships between market structure and price behavior, and (2) antitrust policies that assume reductions in market concentration will always lead to more competitive, presumably less rigid, pricing behavior.     

中国区域碳生产率与能源消耗、经济增长关系比较研究

本文对1995～2013年中国30个省市、自治区的碳生产率、人均能源消费与人均GDP进行单位根检验,并对30个省市、自治区的平稳面板数据进行Grange因果关系检验,研究结果表明：碳生产率与能源消费之间为双向Granger因果关系,能源消费与经济增长为双向Granger因果关系,经济增长是碳生产率的单向Granger原因。当每多消费一单位的能源,对非资源型省份 碳生产率的负向影响将比资源型省份大,即非资源型省份碳生产率下降的水平比资源型省份下降的要多,同时非资源型省份经济增长带来的碳生产率水平上升幅度要大于资源型省份。     

产业关联与能源工业市场化改革

文从横向产品关联、纵向产业关联以及国内外市场关联三个方面分析了能源工业内部的产业关联及其对能源价格体制、市场结构、所有制结构等方面的影响。研究表明，当能源产品是替代关系时，某一能源产品价格的上涨，会使其他能源行业也获得涨价的收益：对某种能源价格进行控制，可能会引起能源供需结构的失衡。当能源产品是互补关系时，无论是上游垄断还是下游垄断，都会影响上下游产业的协调发展．而且会加快竞争性产业走向垄断的速度，并使政府的价格管制处于被动。能源工业的对外开放是第三种产业联系形式，它促进我国能源产品市场的国际化与外商直接投资的发展．但是产品市场融合和外商直接投资规模的扩大只会提高能源工业的生产集中度．而对促进非公有制经济发展的作用有限，能源工业非公有制经济的发展与所有制结构的调整要依靠政府的政策引导和支持。根据分析结果，本文提出了能源工业市场化改革要整体推进．协调进行的政策建议。     

Creating Growth in New Markets: A Simultaneous Model of Firm Entry and Price*

Sales in a new market generally follow a hockey‐stick pattern: After commercialization, sales are very low for some time before there is a dramatic takeoff in growth. Reported sales takeoffs across products vary widely from a few years to several decades. Prior research identifies new firm entry or price declines as key factors that relate to the timing of a sales takeoff in new markets. However, this literature considers these variables to be exogenous and only finds unilateral effects. In the present article, new firm entry and price declines are modeled as being endogenous. Thus, the simultaneous relationship between price declines and firm entry in the introductory period of new markets when industry sales are negligible is studied. Using a sample of new markets formed in the United States during the last 135 years, strong support for a simultaneous model of price and firm entry is found: Price decreases relate to the competitive pressures associated with firm entry, and, in turn, firm entry is lower in new markets with rapidly falling prices. Furthermore, a key driver of firm entry during the early years of a new market involves the level of patent activity, and a key driver of price decreases is the presence of large firms. In contrast to the recommendations from other research, these results indicate that rapid price declines may further delay sales takeoff in industries by dampening new firm entry. Instead, rapid sales takeoffs in new markets come from encouraging greater innovative activity and the entry of large firms.     

Proliferation of Brewers’ Brands and Price Uniformity in Canadian Beer Markets

In this paper, we study retail pricing in Canadian beer markets, where access to the liquor distribution system and the retail price list is restricted by government ownership and control of the system. We consider alternative explanations for price uniformity in the differentiated beer products market. While an analysis of retail beer price data from six Canadian provinces for a 10-year period shows that no single explanation of price uniformity strongly dominates the others, some of the results are consistent with menu cost and demand uncertainty theories of price uniformity.     

Product price and performance level in one market or two separated markets under various cost structures and functions

Market characteristics, including intrinsic demand and customer sensitivity on price and product performance level, are distinct at different markets. Comparisons of various product development strategies in one market or two geographically separated markets are conducted for three classes of products: development intensive products (DIPs) with constant unit cost, marginal cost-intensive products (MIPs) with constant fixed cost, and marginal and development intensive products (MDIPs) with non-constant unit cost and fixed cost. Results show that larger demand size, less customer sensitivity on price and/or more sensitivity on performance level lead to more profit, a higher sale price and a not-lower product performance. The customer reservation or the saturation performance level should be generally adopted though the optimal performance level does exist occasionally. Unit cost and/or fixed cost must increase in performance at an increasing rate for the existence of one optimal performance level. Due to the impact of demand size, one high-end (low-end) MDIP or DIP could be introduced into one low-end (high-end) market at a different price if the demand size is significantly large in the low-end market. For DIPs, offering one niche high-end product is not worse than offering the low-end product into two markets. For MIPs with negligible fixed cost, the product line strategy is not worse than the standard product development strategy. Additionally, the product cost reduction approach adopted in one product line has significant effects on the best product development strategy and sequence.     

Market Share and Price Setting Behavior for Private Labels and National Brands

In this paper, we focus on the nature of demand and competitive response in the market for private label and national branded grocery products. Specifically,we employ less restrictive functional forms than usedin prior research. Specifically, we incorporateLA/AIDS demands and the corresponding price reactionequations to estimate consumer price sensitivities andsupply side price strategies for national brand andprivate label products. Oligopolistic priceinterdependence is explored further by specifyingbrand share, brand Herfindahl, and a measure of thestructure of the local retail markets in the supplyside relations to evaluate explicitly the impact ofmarket structure.In our empirical analysis, we estimate a system of market share and price equations simultaneously inorder to examine (i) the determinants of the demandresponse to pricing and promotion decisions and (ii)the determinants of private label and national brandpricing behavior. Using data for 143 food productcategories and 59 geographic markets, we develop amodel that captures the variation in privatelabel-national brand share and pricing acrosscategories and markets. Key findings include: (i)demand response to price and promotion is decidedlyasymmetric, (ii) price followship between privatelabels and national brands is positive, but notstrong, and (iii) markets characterized by highernational brand market share and higher supermarketconcentration tend to have higher prices forboth national brands and private labels.