Capital market trading volume: an overview and some preliminary conclusions

This paper suggests an explanation for the heavy trading volumeobserved on the US capital markets, the world's largest. Heterodoxeconomic theory puts much of this volume down to speculation.Mainstream theory tends to support this thesis, either directlyor indirectly, by giving space to the idea that trading activityis for the most part exogenous to the functioning of the capitalmarkets. The central hypothesis of this paper is that the tradingvolumes observed are an endogenous feature of the capital markets,because they are to a great extent determined by the needs ofthe institutional investors who predominate on these markets.This endogeneity of trading is posited in connection with theemergence of a new ‘core–satellite’ paradigmin institutional investment, a development that essentiallymanifests the asset-management industry's transformation froma small industry serving a few wealthy clients to a mass industryserving large sections of the population.     

Forecasting Stock Index Futures Price Volatility: Linear vs. Nonlinear Models

The study examines the relative ability of various models to forecast daily stock index futures volatility. The forecasting models that are employed range from naïve models to the relatively complex ARCH-class models. It is found that among linear models of stock index futures volatility, the autoregressive model ranks first using the RMSE and MAPE criteria. We also examine three nonlinear models. These models are GARCH-M, EGARCH, and ESTAR. We find that nonlinear GARCH models dominate linear models utilizing the RMSE and the MAPE error statistics and EGARCH appears to be the best model for forecasting stock index futures price volatility.     

A note on the decomposition (at a point) of aggregate excess demand on the Grassmannian

This paper analyzes the properties of aggregate excess demand functions for economies with an arbitrary finite set of N commodities where agents face trading restrictions of a general, abstract form: their budget set is defined by K-dimensional planes in ^N. It is shown that, if there are at least K agents in the economy, the only general property satisfied by the value of aggregate excess demand and its derivative, at any arbitrary point, is Walras Law. The result is established by considering an economy where agents' preferences are of a ‘generalized Leontief' type.     

期转现是大宗商品期货交割的有效形式

期转现是当今世界商品期货交易中通行的一种大宗商品期货交割方式,是期货交易方式与现货交易方式最有效率的结合,是典型的非标准期货交割方式.本文着重论述了期转现的积极效应和实现条件.     

产商品质量的防伪问题及方法

对产商品质量的防伪问题及方法进行了系统的分类，对方法选用原则进行了探讨。     

Abnormal trading volume,news and market efficiency: Evidence from the Jamaica Stock Exchange

This paper investigates market efficiency of the Jamaica Stock Exchange (JSE). Together, weak and semi-strong form efficiency claim that historical and newly released public information do not predict future stock price movement. We test both forms of market efficiency by analyzing stock price behavior during times of abnormal trading volume and around the release dates of earnings information. Abnormal trading volume may be driven by liquidity demand or reflect new or private information flow to the market. Using JSE data over the period 2000 to 2021, we find price dynamics consistent with price pressure as firms experience negative abnormal returns on the day of abnormal trading activity but offsetting positive abnormal stock returns on the following day. Further findings show post earnings announcement drift on the JSE. Taken as a whole, the evidence suggests violations of market efficiency and has implications for capital allocation in this emerging market.     

Trade matters except to war neighbors: The international stock market reaction to 2022 Russia’s invasion of Ukraine

We investigate the role of international trade and proximity to war in international stock markets during the invasion of Ukraine by employing DiD designs and panel data comprising 70 stock markets. We find that differences in trade exposure to warring countries (trade effect) have a substantial and negative impact on non-European equity markets but are irrelevant for European markets. In contrast, differences in the distance to warring countries (proximity effect) have a significant and negative impact on European markets but have no bearing on non-European markets. We find that the relevance of rent from mineral, natural gas, and oil resources and the relevance of metals, ores, and fuels in exports operate as mitigators of the trade effect. Our paper provides valuable empirical evidence regarding the importance of mitigating the vulnerability of financial markets to international trade when a major war breaks out.     

中国期货市场价格发现功能实证研究

从已有的和本文的实证研究结果来看，我国国内期货价格与现货价格之间以及国内外期货价格之间基本上存在着长期均衡关系。从实际情况来看，我国商品生产者与经营者利用期货市场价格信息，发挥期货市场价格发现功能的事例在不断增多。但与期货市场应有的功能相比，我国期货市场的价格发现功能还没有得到应有的发挥。为此，一方面要进一步完善我国期货市场价格形成机制，另一方面要进一步提高我国期货市场价格信息的指导作用和国际市场的定价权。     

对开设股指期货的几点思考

股指期货交易的设立关系到整个证券市场的创新和发展,涉及到修改法规、市场体系划分、合约设计、交易清算运作、风险管理体系等一系列复杂的制度和技术问题,因此必须在广泛调研、认真研究可行方案的前提下,审时度势、循序渐进地加以推进。在此,笔者对我国开展股指期货的场所、股指的编制及交易的风险控制作一粗略探讨。     

云南少数民族地区可持续发展理念的形成和发展

在自然经济模式下,人们对资源的开发和利用十分有限,经济发展水平低,交流范围狭窄,因此,可持续性和生态平衡得以较好地维系。改革开放以来,特别是国家确立了建立社会主义市场经济体制的目标模式之后,少数民族地区的商品经济均有不同程度的发展,在国家确立了西部大开发和全面建设小康社会的战略目标之后,少数民族地区商品经济迅速发展起来。商品经济的发展对生态平衡和可持续性带来了前所来有的冲击,如何通过制度安排和技术手段来发展经济的同时保持生态平衡,实现可持续发展是少数民族地区经济发展面临的一个两难选择,为解决发展和保护之间的矛盾,云南少数民族地区可持续发展的理念便逐渐形成和发展起来。