Testing weak-form market efficiency: Evidence from the Istanbul Stock Exchange

The random-walk version of the efficient market hypothesis is tested for the Istanbul Stock Exchange (ISE) using its composite, industrial, and financial index weekly closing prices. The results obtained from three of the tests indicate that all three series are a random walk, but a nonparametic test provides some evidence against a random walk.     

Is Volatility the Best Predictor of Market Crashes?

The objective of this paper is to determine the best predictor of equity market crashes by focusing particularly on volatility and market liquidity. In finance, volatility has traditionally been regarded as the best measure of market risk. However, this paper shows that the forecast value of market liquidity, in particular our modified calculated market depth, predicts equity market crashes much more accurately than does the forecast values of EGARCH or Implied Volatility.     

Contrarian Investment in the Dutch Stock Market

The efficient markets hypothesis states that at any times security prices fully reflect all available information. Contrarian investment strategies do not recognize the efficiency of capital markets. They call for buying undervalued stocks, i.e. stocks with a low price relative to their fundamentals. The idea behind such a strategy is to take advantage of the extrapolation behaviour of naive investors. Using a fresh and extensive data set from the Dutch stock market, we found that these strategies yield an outperformance without a higher risk. Our results make it hard to maintain the efficient market hypothesis.     

论法律不完备性与政府介入期货市场

在期货市场上，法律不完备性问题表现得较为突出，法律对于侵害行为的阻吓作用非常有限、期货市场法律的不完备性，主要取决于期货市场的特点和性质。政府采取相关的监管方式管理期货市场非常必要，监管的介入需要满足标准化和损害（外部性）足够高的条件。政府管理期货市场立法和法院执法的作用不可或缺，但更主要的是采用监管的方式。     

中国的金融市场开发与借款证券化

在当今社会，市场对金融运行的压力越来越大，传统的融资方式已难以满足投资者的需要。一种新的金融形式——贷款证券化，使资金拥有者可以通过这一渠道将资金转移到贷款者手中。通过这种形式，可以很好地解决当今社会许多融资难的问题。目前，这种融资形式正在引起我国许多业界人士的注意，这种形式如果能够在我国的金融体系中得到完善，将会极大地促进我国的经济建设，也能很好地解决我国投融资体系中存在的诸多现实问题。     

Market microstructure in a global B2B network

On‐line marketplaces raise several interesting issues, among them the relevance of location when content is digitized, and the assessment of a supplier's capabilities when buyers worldwide only have electronic contact with sellers. In global B2B on‐line marketplaces, market microstructures, i.e. which firms compete for the same customers, are thus likely to be influenced by how customers value location and firm capabilities in their decisions to do business with different suppliers on‐line. We suggest that both these sets of attributes will continue to matter on‐line—firms possessing similar capabilities, as well as firms that are similar in location by country, time zones or clusters, will compete for business from the same customers. We model the similarity in competitive positions between pairs of firms based on the overlap in their customer networks, using data on actual interactions between supplier and customer banks on an electronic trading system. Using QAP network regression techniques on the 100 largest banks in this industry, we find that similarity in capabilities influences who competes with whom, and that location still matters in a global B2B exchange. Interestingly, location influences who a firm's competitors are, but not where its customers are from. Copyright © 2001 John Wiley & Sons, Ltd.     

Incentives and Performance in Real Estate Brokerage

This article has two objectives. One is to offer a theoretical model to study how the difference in commission structures affects the performance of agents at full-commission firms (e.g., RE/MAX agents) relative to other agents. The other is to provide an empirical test of the relative performance of full-commission agents. We predict that in equilibrium the selling price and the expected time it takes to sell a listing through a full-commission agent are the same as they are with a traditional agent. Our theoretical predictions are supported by our empirical results.     

The Infusion of Relational Market Obligations into the Austrian Agenda—Some Lessons Learned from Economic Sociology

Given its dictum of market equilibrium, economics in general obviously does poorly in shouldering market dynamics. Pervading obligatory traits of the market (other than mere dyadic contracting) is yet another area where not much attention is devoted. Whereas the Austrian agenda fills the first of these voids in a most sophisticated manner, its current discourse appears as oblivious concerning the manner in which market exchange transforms into relational interconnected obligations. That is to say, exchange is hardly understood as an indispensable facet of durable market obligations such as relationships 'constituting the market', but exclusively as immediate entrepreneurial arbitrage. Apart from an outright peculiar failure to recognize some of its own roots in this regard this omission unnecessarily delimits the manner in which Austrians can proceed and deepen their market analysis. The principal idea of this paper is to scrutinize the manner in which relational market obligations can be introduced into Austrian reasoning by drawing on ideas from within economic sociology. Max Weber's dictum on market openness takes on a particular role in this regard. An adjacent contribution strived for is to let this scrutiny foreshadow the manner in which such a partial reconciliation of market ideas from within economic sociology and Austrian economics could proceed.     

Allocating an advertising budget to international travel markets

Deciding on advertising appropriations is a common problem to all National Tourist Offices. The Austrian National Tourist Office now employs a decision support model allowing for inclusion of managerial judgments. In tourism, like elsewhere, application of standard optimization routines to marketing decision making is straight- forward, once the relationship linking market response to input has been modeled adequately. A tailor-made decision calculus procedure eliciting managerial judgments on the relative importance of the factors determining a receiving country's travel market share provides the weights otherwise inaccessible by objective parameter estimation. A tourism manager thus can evaluate countries as tourism generators and allocate an advertising budget accordingly.     

基于农业产业化的河南省区域差距研究

文章通过泰尔指数发现从1990年到2005年，河南省区域经济的差距处于一个快速扩大的阶段。通过定量分析发现，河南省区域经济发展水平和发展速度与农业生产具有一定的负相关性，通过定性和定量分析发现，农业产业化对区域差距缩小具有一定的作用，但不起主要作用，一是由于目前河南省农业产业化水平相对还是比较低，农业收入还仅仅停留于农产品的买卖价格，工资性收入所占比重过低，二是农业产业化龙头企业带动能力还是比较弱，带动面小，限制了农区经济的发展水平和速度，最后提出了几点建议。