期货市场与现货市场的试错联动分析——论期货市场功能

文章立足于社会试错成本的视角分析了期货市场功能,认为期货市场的主要功能之一是节约社会试错成本.现货市场在不断的试错和经济波动过程中导致社会资源出现无效配置,而期货市场可以通过社会试错成本的节约来降低现实市场中的实物资源配置的试错成本,以实现资源的最大节约.充分发挥期货市场在资源配置中的作用,有利于促进我国节约型社会的构建.     

Testing the Efficient Markets Hypothesis with Futures Markets Data: Forecast Errors, Model Predictions and Live Cattle

At the forefront of empirical research into the examination of the efficiency of futures commodity markets, two fundamentally different testing techniques have been popularised – the 'forecast error' and 'model prediction' approaches. This paper assesses the relative strengths of these techniques by contrasting results obtained when both approaches are used to examine the efficiency of the Sydney live cattle futures market. While neither model provides evidence to suggest that this market is inefficient, it is clearly shown that the model prediction approach enjoys a number of distinct advantages over its rival. Indeed, the model prediction approach provides additional information that is important not only for those interested in testing the efficiency of futures markets, but is important for anyone interested in developing a greater understanding of the determination of prices and the behaviour of agents in futures markets.     

Information,Pricing and Efficiency in Cash and Futures Markets: The Case of Hogs

The price leadership roles among hog cash and futures markets are assessed to locate points of price discovery and to examine flows of information among these markets. Several years of data are analyzed using lead/lag causality analysis and strength of linear causality measures. Although significant instantaneous relationships exist among hog cash and futures markets, one-way causality tests indicate that generally the futures market dominates cash hog markets in the price discovery process.     

An Apartment Story: To Introduce the Study of Spot,Forward, and Futures Markets,the Term Structure,and Arbitrage

An imagined apartment condominium complex is used as a device to teach how real markets work.     

A Comparison of the Forecasting Accuracy of the Futures and Forward Markets for Foreign Exchange

Theoretical differences between the futures markets and the forward markets for foreign exchange suggest significant differences in the forecasting accuracy of these two markets. The findings of this research suggest that there is a statistically significant difference in the mean percentage forecast errors of the two markets, but this difference is small and probably not of economic significance. Therefore, the managers of multinational firms could expect to get almost equally effective forecasts from the two markets.     

On the Benefits From Rigid Labour Markets: Norms, Market Failures, and Social Insurance

The common view that far-reaching labour market deregulation is the only remedy for high European unemployment is too simplistic. First, the evidence suggests that deeply rooted social customs are an important cause of wage rigidity, going beyond the legal constraints emphasised in the political debate. Second, in a second-best setting, a compressed wage structure may generate an efficiency gain. Finally, based on simple plots of the relation between labour market institutions and openness in OECD countries, I conclude that the globalisation of economic activity may lead to increased demand for various labour market rigidities.     

期货市场交易量与收益及波动关系的分位分析

采用分位数回归方法对上海期货市场铜、铝和燃料油期货收益及波动与成交量的动态关系进行实证研究。该方法允许估计不同分位的方程,从而得到条件分布的完整描述。结果显示上海期货市场期货价格收益具有异方差的特点;存在量价齐扬和量价背离现象;收益波动和成交量之间随着波动增大呈现逐渐加强的正向关系,从而说明我国期货市场信息传播符合混合分布假说。     

证券市场与外汇市场的互动关系及宏观政策选择--从B股向境内居民开放谈起

汇率制度是外汇市场运行的制度基础,在开放条件下不同的汇率制度选择会影响到证券市场和外汇市场之间的互动关系及其具体的互动方式。中国证监会决定对境内居民开放B股市场是中国证券市场开放的重要起步,因而有必要从外汇市场和证券市场协调运行的角度,对B股开放可能带来的经济影响进行分析。在此基础上,需要注重资本管制逐步放松条件下以及在客观把握外汇市场和证券市场互动关系前提下的宏观政策选择。     

Forecasting Errors in the Absence of a Futures Market: The Seasonal Allocation of Wheat Supplies in India

Agricultural policy in developing countries is strongly shaped by views about speculation in the foodgrain markets. The central issue is whether speculative expectations are rational. Yet, data availability and the absence of futures markets rarely permits a direct examination of this hypothesis. However, the government intervenes in the Indian wheat market in a manner that allows speculative expectations to be inferred from government purchase of grain. The application of standard tests of rational expectations is complicated by measurement errors. Results show systematic biases in forecasting errors of a form that would not be sustainable in the presence of a futures market.     

On the Optimality of the Competitive Process: Kimura's Theorem and Market Dynamics

This paper considers the optimality properties of a market economy in terms of three propositions that evaluate the outcomes of and the process of competition between a population of firms working within a given economic environment. We show that when firms differ in more than one competitive characteristic then competition does not select in general the most efficient firm nor does it always result in increases in the average efficiency with which resources are utilized. Drawing upon a theorem of Kimura, however, we show that competition has the property of maximizing the rate of change of the average selective characteristics in the population. We conclude that a more nuanced appraisal of the institutions of the competitive process is surely necessary. From an evolutionary standpoint, the outcomes of competition are always contingent on the nature of the selection environment and the characteristics of the whole population of firms that are being selected. This revised version was published online in July 2006 with corrections to the Cover Date.     

创业理论研究:共识、冲突、重构与观察

创业领域至今还没有形成一个成熟的理论。文章从有影响力和有代表性的创业定义入手,归纳了理论共识、调解理论冲突;然后以此为基础,构建了一个包括创业者、创业过程和外部环境等三个主题的简单创业研究框架,细化出创业过程模型,并归纳出比较完备的创业模型和创业定义;最后,该文以构建的创业研究框架为分析单元对国内的创业文献进行了分类和统计分析,阐述了国内创业研究的发展状况。     

Price Discovery and Risk Transfer in the Crude Oil Futures Market: Some Structural Time Series Evidence

This paper re-examines the Garbade and Silber (1983) model with the objective of finding out if the crude oil futures market performs the functions of price discovery and risk transfer. The model is estimated, using daily data, as a system of two seemingly unrelated time series equations allowing the coefficients to be time-varying. The empirical results reveal that the futures market performs about 60 per cent of the price discovery function, and that the elasticity of supply of arbitrage services is adequately high for the market to perform the risk transfer function.
(J.E.L: G13, C22).     

网络搜索对股票市场的预测能力:理论分析与实证检验

网络搜索数据记录了数以亿计的搜索关注与需求,为研究市场交易行为提供了必要数据基础。本文以股票市场为例,首先从微观的投资者行为视角建立一个理论框架,揭示了网络搜索与股票市场之间存在一定的先行——滞后关系。然后,在时差相关分析的基础上,根据经济含义将搜索数据合成为三类搜索指数:股民行动指数、市场行情指数、宏观形势指数。实证检验得出,搜索指数与上证指数年收益率正相关且存在协整关系。在长期趋势中,三类搜索指数分别每增加1个百分点,年收益率将增加0.22、0.56、0.83个百分点。进一步的Granger因果关系检验表明,搜索指数对上证指数年收益率具有显著的预测能力。     

Separating the Roles of Speculators and Consumers: a Model of Futures Trade

The general equilibrium model of Britto (1984) is criticised. In particular, it is shown that allowing consumers to trade on the futures market leads to more complicated results than necessary. If consumers do not trade futures, and only producers and speculators do, results are greatly simplified. Consumer risk parameters, and parameters of producers production function are irrelevant. The differential between the futures price and the expected spot price, and the direction of futures trade is shown to depend in a straightforward way on the price elasticity of demand for the product on the spot market.     

房地产市场对银行收益的系统性影响研究——以美国、中国香港、中国大陆市场为例

文章研究了三地上市银行和房地产公司股票之间的收益关系,发现三个市场的银行股票收益都显著地受到房地产股票波动的影响,并且利用三地数据的结构性差异点,确定了次贷危机发生作用的时点.对比次贷危机前后的三个市场银行股和房地产股票收益的关系后发现,代表银行股收益对房地产股波动敏感性的回归系数在次贷危机后均有所增大,显示美国和中国的银行业所面临的房地产风险已经由非系统性风险转变为系统性风险,其风险敞口在加大.     

Building the Family Nest: Premarital Investments, Marriage Markets, and Spousal Allocations

We develop a transferable utility model of the household in which the marriage market is characterized by (negative or positive) assortative matching, and spousal allocations are determined by premarital investments. We demonstrate that all sharing rules along the assortative order support efficient outcomes both in terms of premarital investments and intra-household allocations. The efficiency of premarital choices and household allocations then enables us to show that, for each couple, the marriage market generates a unique and maritally sustainable sharing rule that is a function of the distribution of premarital endowments and the sex ratios in the market. According to our results, transfers among spouses occur on two margins: premarital investments and intra-marital spousal allocations. Asymmetries in the sex ratios in the marriage markets produce gender differences in premarital investments and consumption that are larger for individuals with small premarital endowments than those with larger endowments. A corollary of these findings is that, when men are in short supply in the marriage markets, women can invest more than men even when the returns to investment are lower or the costs are higher for women.