宏观经济变量对中国国债风险溢价影响的实证研究——基于上海证券交易所的交易数据

本文基于面板数据模型,对各主要宏观经济变量及利率期限结构对国债风险溢价的影响进行了实证研究.研究结果表明:国债利率期限结构曲线越陡峭,国债的风险溢价水平越高;通货膨胀因素对国债风险溢价水平的影响较大;规模以上工业增加值、上证综合指数月度收益率与L 债风险溢价水平存在显著负相关关系;广义货币供应量与国债风险溢价水平存在显著正相关关系;官方利率与国债风险溢价水平的关系较弱.     

防止利益冲突：治理房地产腐败的有效途径

当前,中国正处在发展的“黄金期”、“关键期”和“敏感期”,经济发展的“高速”、腐败现象的“高频”,以及由此引发的各类矛盾“高显”是其突出表征。我国房地产业在迅猛发展、对国计民生影响愈来愈深远、并成为国民经济发展支柱产业的同时,却也因房地产领域腐败案件频发给其发展带来极大困扰。应当充分认识利益冲突是房地产领域腐败的第一诱因和根源;多管齐下,建立健全防止利益冲突机制是从源头上治理房地产腐败的必然选择。     

Commodity futures contracts: Furnishing an elastic currency in the nineteenth century

In this paper, I show that nineteenth century US interest rates are relatively more volatile before 1874 and I propose, and demonstrate how, commodity futures trading is the likely principal proximate explanation for this change in behavior. Borrowing from Turnovsky [Econometrica 51 (1983) 1363], I model the optimizing behaviors of risk averse producers and risk neutral speculators in the absence and presence of futures contracts and I show that, so long as one party to a futures contract was risk averse, futures markets would have quelled interest rate volatility caused by variations in planting and harvesting conditions.     

我国国债利率期限结构研究

本文简单地阐述了传统的利率期限结构理论,通过连续复利的方式获得了我国国债的到期收益率。在此基础上,构造了国债收益率曲线并通过建模获得了收益率曲线的回归方程。同时,根据我国国债利率期限结构的形状和特点,用传统的利率期限结构理论对其进行理论说明,并指出国债产品设计与定价上的问题与改进建议。     

Mortgage Refinancing Activity: An Explanation [1990–2001]

Mortgage refinancing activity reached unprecedented high levels during 1990–2001. Using GARCH to control for heteroskedasticity and separating the data into regimes to control for potential structural changes over time, we estimate a model explaining changes in mortgage refinancing activity over the period studied. We find changes in refinancing activity to be negatively related to current as well as past changes in the 30-year mortgage rate with a declining significant lag over time. Similarly, there is a significant lagged dependent variable with a declining lag. Moreover, mortgage refinancing activity is a substitute for other investments during certain regimes. These results offer evidence that home owners cash out the mortgage for other investments. The lags suggest that the process is delayed for a variety of reasons. The declining lag signals a faster response by consumers. The reasons for a faster response include a consumer perception that interest rates have “bottomed out,” the presence of an increase in consumer sophistication, and improvements in technology and market coordination that facilitate and reduce the cost of the refinancing process.     

Exchange rate volatility and regime change: A Visegrad comparison

We analyze exchange rate volatility in the Visegrad Four countries during the period in which they abandoned tight regimes for more flexible ones. We account for path dependency, asymmetric shocks, and movements in interest rates. In addition, we allow for a generalized error distribution. The overall findings are that path-dependent volatility has a limited effect on exchange rate developments and that the introduction of floating regimes tends to increase exchange rate volatility. During the period of flexible regimes, volatility was mainly driven by surprises. Asymmetric effects of news tend to decrease volatility under the floating regime. Interest differentials impact exchange rate volatility contemporaneously under either regime, although we find no intertemporal effect of interest differentials. Journal of Comparative Economics 34 (4) (2006) 727–753.     

基于分数维随机利率的分数跳-扩散外汇期权定价

假设利率为分数维随机利率,外汇汇率服从分数跳一扩散过程,并且波动率为常数,期望收益率为时间的非随机函数,本文利用保险精算方法,得出了看涨、看跌外汇欧武期权的一般定价公式,并建立了平价公式。     

利率市场化、商业银行信贷与企业融资行为

利率市场化是提升金融资源配置效率的重要手段。本文通过分析利率市场化对商业银行信贷和企业融资行为的影响机制和理论模型,比较利率管制、利差管制和利率市场化条件下资本所有者、资本中介者和资本需求者的行为模式,指出利率市场化对资本所有者的收益、资本中介者的经营效率以及企业的融资结构、企业融资约束的放松都产生了积极正向的效应。"十二五"期间,我国需要有计划、有步骤、坚定不移地推进利率市场化改革,并以此为契机,提升商业银行经营效率,优化企业融资结构,缓解企业尤其是中小企业的融资困境。     

The Distorting Impact of Capital Controls

Abstract. This paper uses panel data to show that capital controls have a significant impact on international interest rate differentials. Various types of controls can be distinguished within the data. The analysis shows that the aforementioned effects of capital controls on interest rates are especially strong in the case of capital import controls on portfolio capital; the implementation of these controls has been suggested in the wake of the Asian Crisis to prevent further crises. The results presented herein contradict the hypothesis that capital controls can achieve a restructuring of the maturity of capital inflows without a distortion in international capital allocation.     

对SHIBOR作为我国货币市场基准利率的有效性检验

SHIBOR是我国正在培育和发展的基准利率。本文根据国际通行的基准利率标准,运用SHIBOR运行以来的数据,采取理论分析和实证检验的方法,从市场性、基础性、稳定性、可控性、相关性五个方面,对其作为我国货币市场基准利率的有效性进行了全面系统地检验。结果表明,SHIBOR可初步作为基准利率,但有效性偏弱。并提出了改进建议。