批发市场中电子中间商问题的分析

随着网络经济的迅速发展 ,出现了许多基于网络基础的提供信息服务的具有中介功能的电子中间商。批发市场中产品的质量存在不确定性 ,电子中间商能提高市场交易的效率 ,但物流和市场交易的分离也给市场的买卖双方带来了新的交易风险。电子中间商可以采用拍卖交易方式 ,并建立一个能降低交易风险的信用机制。信用机制的建立会促使电子市场的交易集中于高质量的产品 ,且产品的价格要高于传统市场产品价格。     

我国开展融资融券业务的必要性及其对策

融资融券交易是世界股票市场广泛流行的交易方式之一,比较成熟的证券市场都允许股票信用交易,如美国、日本、韩国、西欧等国的证券交易法律都有信用交易的规定。融资融券交易之所以广泛流行,是因为这种交易对证券市场及其参与者都具有其积极的作用。尤其在中国更有其必要性。我国证券市场即将开展融资融券业务,在此情况下,研究和探讨开展融资融券业务的必要性及其对策极具现实意义。     

Archipelago's move towards exchange status: An analysis of Archipelago trading in NYSE and NASDAQ stocks

Archipelago began reporting trades and quotes to the Pacific Stock Exchange in 2002 for NYSE-listed securities and in 2003 for NASDAQ-listed securities. These events mark the time that Archipelago began migrating stocks from its ECN platform to the exchange platform, thereby becoming a stand-alone exchange. We examine the impact of becoming a stand-alone exchange on execution quality and market share of Archipelago to gain insight into its ability to compete for order flow in NYSE and NASDAQ stocks. We find that the change has a positive effect on Archipelago's execution quality for NYSE stocks, while it has a negative effect for NASDAQ stocks. A possible explanation is that Archipelago lost the large pool of liquidity that SuperMontage provided when it became a stand-alone exchange, and that loss may offset any gain associated with having exchange status. Overall, exchange status helped Archipelago slowly make headway in the NYSE-listed securities arena.     

Market exchanges, hierarchical exchanges or relational exchanges in export channels into emerging markets

This study draws from relational contracting paradigm, transaction cost paradigm, and internationalization process paradigm and evaluates market exchanges, hierarchical exchanges, and relational exchanges between Western manufacturers and their foreign intermediaries in emerging markets. The study suggests that choices of exchange governance be determined by various factors in combination, including experiential knowledge, market conditions, activity complementarity, brand power, and trust. Choices of exchange governance depend on the interaction among these factors.     

A realistic model of market liquidity and depth

A model that realistically defines market liquidity and depth is introduced. Liquidity is the expected rate of order execution in shares per minute. Depth is the average density of the limit order book in shares per dollar. Illiquid markets tend to exhibit longer execution delays and indirectly higher risk related to price impact. Markets with low depth are characterized by high price sensitivity and larger risks. Deviations from fundamental value exist because arbitraging them away carries liquidity cost, entails impact risk, and generates negatively skewed profits. Premia include liquidity and transparency components. In order to avoid excessive frontrunning and liquidity withholding around their block trade, traders break their block orders into smaller orders. In anonymous markets, the trader discriminates against early liquidity providers, and is only compensated for liquidity. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:443–464, 2005     

Turnover and return in global stock markets

I study how growth affects liquidity of global stock exchanges and how liquidity determines cross-sectional returns on those stock exchange index portfolios. I measure portfolio liquidity by turnover ratio computed as value of shares traded over the market capitalization. I obtain data from FIBV, an association of global stock exchanges. In a multiple regression model for turnover ratio, I find age, size, type of exchange, competition for order flow, and growth rate to be significant determinants of portfolio liquidity; however, exchange- and time-specific effects are more appropriate for modeling portfolio liquidity. The time effects yield to three distinct regimes, while the exchange-specific effects are surrogates for the legal systems, English common law, and Civil laws of the countries. I estimate the parameters of a multiple regression model in a two-stage GLS framework in which index return is a function of turnover. The GLS method is preferable since a turnover ratio may have a non-stationary, random component. The significant determinants of index return are turnover and volatility, although some of the volatility effect may be a spillover from a January effect. Investors expect higher return from high turnover markets. However, the positive turnover expected return relation is true only in emerging markets; in developed markets expected return is a function of volatility. This result confirms existing empirical evidence that high turnover stock portfolios generate superior returns and further the sources and pricing of risk in emerging and developed markets are different.     

Volatility Spillovers and the Risk-Return Relation Between Stock and Foreign Exchange Markets in Brazil

We examine the evidence of mean and volatility spillovers between stock and foreign exchange markets in Brazil with multivariate GARCH models and nonlinear Granger causality tests. We also use a multivariate GARCH-in-mean model to assess the relationship between risk and return in these markets. The results indicate that the stock market leads the foreign exchange market in price formation and that nonlinear Granger causalities from the exchange market to the stock market do occur. Part of these nonlinear causalities are explained by volatility spillovers. We show that exchange rate volatility affects not only stock market volatility but also stock returns.     

The impact of electronic trading on bid‐ask spreads: Evidence from futures markets in Hong Kong,London, and Sydney

During 1999 and 2000, three major futures exchanges transferred trading in stock index futures from open outcry to electronic markets: the London International Financial Futures and Options Exchange (LIFFE); the Sydney Futures Exchange (SFE); and the Hong Kong Futures Exchange (HKFE). These changes provide unique natural experiments to compare relative bid‐ask spreads of open outcry vs. electronically traded markets. This paper provides evidence of a decrease in bid‐ask spreads following the introduction of electronic trading, after controlling for changes in price volatility and trading volume. This provides support for the proposition that electronic trading can facilitate higher levels of liquidity and lower transaction costs relative to floor traded markets. However, bid‐ask spreads are more sensitive to price volatility in electronically traded markets, suggesting that the performance of electronic trading systems deteriorates during periods of information arrival. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:675–696, 2004     

An intraday test of pricing and arbitrage opportunities in the New Zealand bank bill futures market

This paper examines pricing and arbitrage opportunities in the New Zealand bank bill futures market using an intraday data set. The key findings are: (a) the implied forward rate model yields biased estimates of the bill futures yield but the bias is small and not economically significant; (b) ex post synthetic bill opportunities are more numerous than ex post quasi‐arbitrage opportunities but the yield enhancements are minor; (c) ex post quasi‐arbitrage opportunities are substantially less frequent and less profitable than reported by prior studies using closing data; and (d) arbitrage opportunities decline when execution delays are introduced but the declines are not statistically significant. In broad terms, the bill futures market is efficient with respect to quasi‐arbitrage but less so with respect to synthetic bill opportunities. The results also suggest that arbitrage opportunities are not generally available to arbitrageurs without access to the interbank bill market. The incidence of arbitrage opportunities is on a par with levels reported in intraday studies of stock index and foreign exchange markets. This illustrates the importance of using high frequency data to assess transactional efficiency in financial markets. © 2002 Wiley Periodicals, Inc. Jrl Fut Mark 22:519–555, 2002     

Market integration and contagion: Evidence from Asian emerging stock and foreign exchange markets

This paper examines whether Asian emerging stock markets (India, Korea, Malaysia, Philippines, Taiwan, and Thailand) have become integrated into world capital markets since their official liberalization dates by estimating and testing a dynamic integrated international capital asset pricing model (ICAPM) in the absence of purchasing power parity (PPP) using an asymmetric multivariate GARCH(1,1)-in-Mean approach. Also examined in this paper is whether there are pure contagion effects between stock and foreign exchange markets for each Asian country during the 1997 Asian crisis. The empirical results show that first, both currency and world market risks are priced and time-varying, suggesting that an international asset pricing model under PPP and constant price of risk might give rise to model misspecification. Second, the stock markets for India, Korea, Malaysia, Philippines, and Thailand were segmented from the world capital markets before their liberalization dates, but all six markets have become fully integrated since then. Third, the market liberalization has reduced the cost of capital and price volatility for most of the countries. Finally, as for the contagion effects, strong positive impact of return shocks originating from the domestic stock market to its foreign exchange market during the crisis is found. This dynamic relationship between stock market and foreign exchange market is consistent with stock-oriented exchange rate models.     

证券交易税对市场波动性的影响:来自中国股市的证据

本文运用ARCH族模型检验了2001年股票交易印花税税率降低对沪、深股市波动性的影响,为有关证券交易税对市场波动性影响的讨论增添了一个来自新兴市场的证据。计量结果表明,该次税率变动对沪市波动性的影响在统计上是不显著的;深市的波动性在税率降低后虽然有统计上显著的增加,但是这个变化太小,没有实际意义。我们的研究结果表明,对于像中国股市这类市场结构和市场制度处于变化之中的新兴市场,如果试图通过调整证券交易税税率这类显性的交易成本来影响市场波动性,其效果是有限的。     

Success Factors in Cooperative Online Marketplaces: Trust as the Social Capital and Value Generator in Vendors-Exchange Relationships

The business reliance on cooperative online exchanges for business-to-business transactions is on the rise. This paper examines the factors contributing to the success of vendor-exchange relationships in this type of marketplace. We use a Critical Realism approach to identify constructs salient to vendors-exchange relationships. A synthesis of value creation, social capital, and trust theories is used for conceptualizing the model. The model is tested using the data from a survey of vendors participating in a cooperative exchange. Results indicated that value creation was the main source of continuance in vendors-exchange relationship. However, the perception of value depended to a larger degree on the relationship quality and to a lesser degree on transactional exchanges (using the exchange's technology solutions as the sources of transaction), indicating the strength and extent of vendors-exchange relationship is an intangible asset for the exchange company. We also found that the exchange company's innovativeness was critical to the perceived quality of transactional exchanges, whereas perception of unfair treatment and communication quality influenced relationship quality. The results also indicated that trust was the main source for the social capital that contributed to perceived value of relationship. The ability of the exchange company to build a community was another factor contributing to the success of this relationship.     

现行汇率制度下我国企业的外汇交易风险防范

在新的汇率制度下,我国企业面临着比以前更大的外汇交易风险。本文通过对外汇交易风险防范的目标和原则,以及我国企业在防范外汇交易风险中的问题进行分析,并结合我国汇率制度和金融市场的实际情况,总结了一些防范企业外汇交易风险的措施。     

Buyer-Seller Exchange Situations

Abstract

From having focused almost entirely on exchange transactions in consumer goods markets, in the 1970s, academics expanded their analysis to include relational exchanges-in particular business-to-business markets and service markets. The contextual changes of the 1990s (i.e., the explosion of IT and the Internet) resulted in the introduction of relationship marketing as an alternative marketing approach in consumer goods markets introducing the notion of a shift in exchange paradigms. However, in the late 1990s, a number of authors on service marketing (e.g., Liljander & Strandvik, 1995), on business-to-business marketing (e.g., Anderson & Narus, 1999) and on contemporary marketing practices (e.g., Brodie, Coviello, Brookes & Little, 1997) supported the thesis that in many markets the process that actually takes place is one of co-existence of transactional exchanges and relational exchanges. Based on the “pluralistic approach” (Pels, Coviello & Brodie, 1999, 2000), this paper develops four cases that seek to exemplify the different exchange situations that may occur in a given marketplace.     

Resiliency in the E-mini futures market

We study how quickly liquidity is replenished on the order book in E-mini futures. The results show that participants who use patient methods, such as limit orders, are often fast to place new orders, while those using impatient market orders are slow to re-enter the market. These delays are a function of state constants, such as firm types, state conditions, such as whether the order is price improving, and time-varying covariates, such as the volume of trade during the gap. We also find support for the view that certain traders delay providing liquidity during active markets to avoid informed trading.     

The relative efficiencies of price execution between the Singapore Exchange and the Taiwan Futures Exchange

Both the Singapore Exchange (SGX) and the Taiwan Futures Exchange (TAIFEX) offer future contracts based on Taiwan's stock‐market indices. TAIFEX reduced the transaction tax from 5 basis points to 2.5 basis points on May 1, 2000. Hence, empirical tests are performed on the differences in trading costs and information transmissions between SGX and TAIFEX for the sample periods both before and after the tax reduction. It is shown that the reduction in the transaction tax greatly improves the efficiencies of price execution. Due to the structural differences between these two markets, the trading costs and speed of information transmissions also are different. The results also provide implications for the relative efficiencies of different market structures. © 2002 John Wiley & Sons, Inc. Jrl Fut Mark 22:173–196, 2002     

我国证券市场监管存在的问题及对策探析

证券市场的健康发展离不开对其有效的监管。当前,我国证券市场还处于发展初期,存在着监管法规不够健全,监管体制不完善,信息披露制度不规范等问题,使得内幕信息提前泄露,信息披露不充分,某些机构操纵股价的现象时有发生,中小投资者面临着很大的风险。我国应建立健全对证券市场监管的相关法律法规,进一步完善证券市场监管体制,进一步健全证券市场的信息披露制度,努力改善交易信息失灵状况,从而促进我国证券市场健康发展。     

Firms’ internationalization and alternative approaches to the international customer/market selection

While the theoretical development and empirical studies on exchange transaction modality to international markets have been impressing, relatively few researchers have focused on the process by which firms select where or with whom the transactions should be performed. This paper is an attempt to establish a research agenda on the selection of foreign market or customer. The characteristics of the ‘traditional’ approaches—systematic and non-systematic—are examined and compared with a relationship approach. Furthermore, this paper emphasizes the interrelationship between the choice of entry mode and choice of foreign market/customer. The authors develop research propositions suggesting circumstances under which a relationship approach is more likely than a traditional approach. Future research directions are illuminated.     

Electronic Call Market for Commodity Transactions: Design of Computer-Mediated Order Matching System

Commodity exchanges provide potential market structures for electronic trading because commodity products have relatively simple and well-standardized product attributes. Most existing electronic trading systems are introduced for financial exchanges, where qualities of traded products (such as stocks and bonds) are homogeneous, thus taking into account only bid and offer prices for computer-mediated order matching. However, a single commodity market, such as the cotton or grain market, is made up of many heterogeneous goods that are similar to each other but have different product qualities and contract terms. In addition to the price, commodity traders have other pertinent preference ranges over product attributes and delivery conditions. We delineate an electronic call market system for commodity trading, which optimizes the realization of traders' utilities over extended product attributes beyond the price. The electronic call market not only maximizes the total surplus of market participants based on bid and ask prices but also satisfies their qualitative preferences over other attributes, which are difficult to include in the quantitative prices. The trading mechanism of the electronic call market integrates an economic auction model with a social choice model to produce a Pareto-improved transaction. Market simulations are conducted to validate the performance of the proposed electronic call market. The order matching system of the electronic call market is implemented using constraint logic programming.     

After‐hours trading in equity futures markets

Although it is well known that electronic futures data absorb news (slightly) in advance of spot markets the role of the electronic futures movement in out‐of‐hours trading has not previously been explored. The behavior of the 24‐hour trade in the S&P 500 and NASDAQ 100 futures market reveals the important role of these markets in absorbing news releases occurring outside of normal trading hours. Peaks in volume and volatility in this market occur in conjunction with U.S. 8:30 A.M. EST news releases, before the opening of the open‐outcry markets, and in a less pronounced fashion immediately post‐close the open‐outcry market. Price impact in these markets is statistically higher in the post‐close than in the pre‐open periods. © 2008 Wiley Periodicals, Inc. Jrl Fut Mark 29:114–136, 2009