METROPOLITAN HOUSE PRICES IN SOUTH AFRICA: DO THEY CONVERGE?

The question this paper investigates is whether or not different metropolitan areas each constitute a separate housing market or whether or not there is a single South African housing market. Theory on the Law of One Price suggests that if products or geographic areas belong in the same market, their absolute prices must converge, so that their relative prices are stationary. By using cross-sectional time series data of five metropolitan areas, the paper tests for the Law of One Price by applying the Im, Pesaran and Shin panel unit root test. The paper finds strong evidence of convergence in large middle-segment house prices and weaker support for convergence in medium middle-segment house prices. In addition, the paper finds no evidence for convergence in small middle-segment house prices. This suggests the existence of a national market for large and possibly middle-segment houses in metropolitan areas, but separate metropolitan markets for small middle-segment houses. In addition, the paper estimates the speed of convergence and finds that large middle-segment house prices converge within two to seven quarters, while the speed of convergence for medium middle-segment house prices in three of the five areas is five to eight quarters.     

Hedging,Financing and Investment Decisions: A Simultaneous Equations Framework

We empirically investigate the interactions among hedging, financing, and investment decisions. We argue that the way in which hedging affects a firm's financing and investing decisions differs for firms with different growth opportunities. We find that high growth firms increase their investment, but not leverage, by hedging. However, we also find that firms with few investment opportunities use derivatives to increase their leverage.     

金融危机下的我国财政风险测度

次贷危机影响了我国的经济和财政态势,经济增长放缓使得财政的收支压力逐步凸显,风险增大。本文采用在国际上得到广泛采纳的风险指标法对我国当前的财政风险状况进行了度量,结论是短期内风险虽有所增加,但仍处在可控范围内;中长期则需要对政策作出适当调整,以降低未来的风险。     

优化化工过程 提高综合效益

化工行业是我国国民经济的支柱产业之一,其发展直接关系到整个国民经济的繁荣,化工工业具有原料,产品,工艺,技术多方案性的基本特征,这种多方案性深刻蕴含着经济的盈亏,社会效益的大小与环境保护的优势,即综合效益。本文有效的利用优化技术解决化工工业中的实际问题,增加综合效益。     

RSS技术的应用和发展趋势探讨

RSS是以XML为基础,用于为内容整合客户端提供选择性的、汇总过的Web内容的技术规范。由于RSS具有简单、规范、通用、容易自动生成等特点,因此越来越多的网站也采用这种方式来发布最新信息。本论文先阐述RSS及其相关技术,接着提出RSS阅读器的一个具体实现,最后对RSS的发展趋势进行深一步的探讨。     

西部收入偏低亟待改革

改革开放以来，由于各种原因使得我国地区之间的经济发展水平和收入水平有了很大的差距。对于这些差距，我们可以通过对人均经济收入、人均财政收入、城镇居民可支配收入、农民人均纯收入、人均国际收入等五个指标的分析中详细地看到。从客观性和可行性的意义上讲，西部地区要在短时期内消除这些差距，是根本不可能的。因此，作为西部地区来讲，应该选择实事求是的态度，既要正视这些差距的长期存在，又要通过体制创新、政策创新、战略创新等，努力探索试图缩小差距的途径和对策。     

Risk Arbitrage in Takeovers

This article studies the role of risk arbitrageurs in takeoversand the source of their advantage. We show how the presenceof arbitrageurs affects the value of the target shares, sincearbitrageurs are more likely to tender. Therefore an arbitrageurhas the informational advantage of knowing he bought shares.In equilibrium, the number of arbitrageurs buying shares andthe price they pay are determined endogenously. We also presentseveral empirical implications, including the relationship amongtrading volume, takeover premium, liquidity of the shares, andthe number of risk arbitrageurs investing in one particulardeal.     

基于Panel—Data模型的山东省区域旅游问题研究

旅游业已被公认为“朝阳产业”、“无烟工业”，是集吃、住、行、游、购、娱为一体的综合性很强的产业，其光明的发展前景已为世人所公认。旅游业对其相关产业的牵动比例为1：4，可以充分带动地方经济的发展，发展潜力很大。本文运用了山东省17地市的国内旅游情况的合成数据，通过建立完整的计量模型，进行计量分析，进而发现各地市每增加一万人次的旅游者，对该地区的旅游经济的影响存在一定的差异，并且对于差异进行聚类分析，得出全省各地市的不同属类，为山东省日后旅游市场的更好发展提出了一些相应的建议。     

通货膨胀的各种成因及其在我国的实证分析

本文不仅总结了当前主要的实证研究文献提出的我国通货膨胀的种种成因,而且对每种原因给予了比较分析和新的实证分析,并在此基础上尝试进行了综合分析,以得出一些有益的结论。     

ANALYST REPUTATION,DEALER AFFILIATION,AND MARKET MAKING

We investigate the effects of analysts' affiliation and reputation on dealers' market making activities. We find that for a given stock, dealers who have affiliated analysts covering the stock quote and trade more aggressively than those who do not have any affiliated analysts. More important, the reputation of affiliated analysts plays an additional role in the affiliated dealer's quote and trade behavior. Dealers with affiliated star analysts post more aggressive quotes and have larger market shares than dealers with affiliated nonstar analysts. Although dealers who post more aggressive quotes also induce affiliated star analysts to cover the stocks, the positive effect of analyst reputation on the affiliated dealers' quote aggressiveness remains significant and robust after controlling for potential endogenous and simultaneous problems.