住宅价格与经济基本面的实证研究——以上海市为例

近几年来,我国房地产市场发展迅速,个别区域性房地产市场出现了价格过高的现象.对此,国家采取了一系列宏观调控措施.对于房地产价格的合理与否,目前仍然存在着争议.影响住宅实际价格的因素主要是土地价格和住宅价格的历史信息.而可支配收入对价格的影响并不显著,因此应加强对不合理的房地产投机需求的调控.     

股票价格对物价水平的影响

股票价格作为最重要的金融资产价格，会通过“财富效应”、“替代效应”、“预期效应”、“新产品效应”和“工资效应”等途径影响投资和消费等宏观经济变量，进而影响包括商品劳务价格在内的一般物价水平。在发达国家和发展中国家，股票价格影响物价水平的方向和程度有着重大区别。     

Risk-taking incentives of executive stock options and the asset substitution problem

Various theoretical models show that managerial compensation schemes can reduce the distortionary effects of financial leverage. There is mixed evidence as to whether highly levered firms offer less stock‐based compensation, a common prediction of such models. Both the theoretical and empirical research, however, have overlooked the leverage provided by executive stock options. In principle, adjusting the exercise prices of executive stock options can mitigate the risk incentive effects of financial leverage. We show that the near‐universal practice of setting option exercise prices near the prevailing stock price at the date of grant effectively undoes most of the effects of financial leverage. In a large cross‐sectional sample of Canadian option‐granting firms, we find evidence that executives' incentives to take equity risk are negatively rather than positively related to the leverage of their employers.     

资产评估法律责任的法律法规分析

我国资产评估行业经过十几年的迅速发展，已经成为与注册会计师和律师并列的三大中介服务行业之一，是我国市场经济体系的重要组成部分。然而，近几年证券市场上公开披露的重大违规案例，很多都直接或间接与资产评估有关，尤其“麦科特”公司虚假上市案，资产评估“诉讼爆炸”时代即将来临，资产评估法律责任引起广泛关注。本从资产评估法律责任的相关法律法规的比较入手，找出了其存在的问题，并进行了理论分析。     

The macroeconomic determinants of technology stock price volatility

Stock prices reflect the value of anticipated future profits of companies. Since business cycle conditions impact the future profitability of firms, expectations about the business cycle will affect the current value of firms. This paper uses daily and monthly data from July 1986 to December 2000 to investigate the macroeconomic determinants of US technology stock price conditional volatility. Technology share prices are measured using the Pacific Stock Exchange Technology 100 Index. One of the novel features of this paper is to incorporate a link between technology stock price movements and oil price movements. The empirical results indicate that the conditional volatilities of oil prices, the term premium, and the consumer price index each have a significant impact on the conditional volatility of technology stock prices. Conditional volatilities calculated using daily stock return data display more persistence than conditional volatilities calculated using monthly data. These results further our understanding of the interaction between oil prices and technology share prices and should be of use to investors, hedgers, managers, and policymakers.     

Mood and Judgment of Subjective Probabilities: Evidence from the U.S. Index Option Market

Numerous psychological studies show that weather conditions affect people'smood and that mood states are correlated with people's subjective evaluationof future probabilities. In this paper, a new approach is developed and assetmarket data are employed to test the mood-subjective probability relation. Cloudcover and precipitation volume serve as two mood proxies. Our statistical analysissuggests that bad mood states are characterized by investors placing higher probabilitieson adverse events.     

Characteristics of Earnings-Leading Versus Price-Leading Firms

This study attempts to identify firm characteristics that explain the disparity between the information content of accounting earnings and stock prices. Granger's causality concept was employed to classify sample firms into four groups: price-leading firms, feedback-system firms, earnings-leading firms, and no-causation firms. The feedback-system firms were either combined with the no-causation firms or eliminated entirely to form three sample groups. The entire sample firms then were divided into two classes. The first is for estimation, and the second is for prediction. Results indicate that firm size, capital structure, R-square of regressing prices at time t against earnings at time t – 1, R-square of regressing earnings at time t against prices at time t – 1, and percentage of shares held by institutions are the significant explaining variables. The application of the coefficient estimates to the hold-out sample indicates that 76.2% of the firms can be correctly classified into the corresponding groups. These results were consistent with those from canonical discrimination and other multivariate statistical methods.     

On the Distribution of CBOE Option Trade Prices Occurring Between Consecutive Stock Trades

This paper examines the volume distribution of option trade prices that occurs when the underlying stock price remains constant. The width of these option trade price bands provides direct evidence on the law of one price and the redundancy of options assumed in many option models. We find that index option bands are narrower than equity option bands. Furthermore, for both equity and index options, puts have narrower bandwidths than calls. In general, option price bandwidth is narrow and can be explained by the minimum price movement allowed by the Chicago Board Options Exchanges (CBOE). This supports the single price law and the redundancy assumption. The existence of bid/ask quotes on the option does not materially affect the above results although it does alter the frequency of multiple option trade prices for a given underlying stock price. We note that over 53% of option trading volume occurs without bid/ask quotes on the CBOE compared to less than 15% a decade ago. Our results suggest that the effective bid/ask spread on options is probably no larger than the minimum price movements allowed by the CBOE. Furthermore, the need for the liquidity services of market makers may be declining if the decline in quoting activity stems from cross trading (i.e. trades not involving market makers).     

Evidence on the Timing and Determinants of Overfunded Pension Plan Termination

This paper examines the factors associated with the timing of overfunded pension plan termination.     

Subordinated Market Index Models: A Comparison

The paper compares various processes subordinated to the Wiener process tomodel the leptokurtic characteristics of index returns. Empirical analysisis performed on the Dow Jones and Nikkei 225 indexes. A good model to capturethe typical tail behaviour of these indexes turns out to be a long Studentt distributed one.