Return and price volatility of bonds with different credit risk

This article analyzes the relative price and monthly holding period return volatility of bonds with differing credit risk. The research proceeds by decomposing the causes of price volatility into that due to duration and yield volatility. Lower duration, due to higher coupon rate, and relatively stable yields, due to the behavior of credit risk and risk aversion over the business cycle, may well make lower quality issues such as A and Baa industrials exhibit less volatility than high-quality issues such as Aaa industrials and United States Treasury issues.     

教育质量波动性对住宅价格的影响研究

“学区房热”源于优质教育资源总量不足、学区间教育质量分布不均。通过分离家庭的学区房购置时刻与住房教育价值实现时刻,区分家庭在事前与事后对住宅附加教育收益的不同评估方式,从微观视角分析学区教育质量波动性的不同是导致择校现象和学区房溢价的另一方面原因。为减轻教育质量波动性给义务教育入学环境带来的负面影响,推动绩效公开、持续投入资源、发展一贯制教育是可行的教育调控政策。该发现还可推广于其他具有质量波动性的公共服务,提示在城市建设时应降低这些设施与服务的质量风险,以便从全方位稳定住宅市场价格。     

Managed futures,positive feedback trading,and futures price volatility

A major issue in recent years is the role that large, managed futures funds and pools play in futures markets. Many market participants argue that managed futures trading increases price volatility due to the size of managed futures trading and reliance on positive feedback trading systems. The purpose of this study is to provide new evidence on the impact of managed futures trading on futures price volatility. A unique data set on managed futures trading is analyzed for the period 1 December 1988 through 31 March 1989. The data set includes the daily trading volume of large commodity pools for 36 different futures markets. Regression results are unequivocal with respect to the impact of commodity pool trading on futures price volatility. For the 72 estimated regressions (two for each market), the coefficient on commodity pool trading volume is significantly different from zero in only four cases. These results constitute strong evidence that, at least for this sample period, commodity pool trading is not associated with increases in futures price volatility. © 1999 John Wiley & Sons, Inc. Jrl Fut Mark 19: 759–776, 1999     

Relative price volatility under Sudden Stops: The relevance of balance sheet effects

Sudden Stops are associated with increased volatility in relative prices. We introduce a model based on information acquisition to rationalize this increased volatility. An empirical analysis of the conditional variance of the wholesale price to consumer price ratio using panel ARCH techniques confirms the relevance of Sudden Stops and potential balance sheet effects as key determinants of relative price volatility, where balance sheet effects are captured by the interaction of a proxy for potential changes in the real exchange rate (linked to the degree of external leverage of the absorption of tradable goods) and a measure of domestic liability dollarization.     

Intertemporal volatility and price interactions between Australian and Japanese spot and futures stock index markets

Previous studies have examined causality within and between different spot and futures markets with a motivation to discover market comovements, price leadership effects, and, more recently, volatility spillovers across markets. However, the empirical framework within which this is accomplished tends not to analyze explicitly foreign spillover effects upon a spot–futures relationship, which may significantly alter the equilibrium between these markets. This will then have a direct impact upon the estimation of dynamic risk adjustments that occur from the interaction between these markets. This article develops a quadvariate simultaneous-equation EC-ARCH model with an emphasis on volatility spillovers as a better alternative methodology to evaluate these relationships from a different perspective. This model is applied to examine the interaction between the Australian and Japanese spot and futures stock index markets, which allows for an Australian or Japanese futures trader to analyze the impact of foreign cash and futures markets, as well as the local cash market, on the local futures market in a single coherent framework. This type of analysis is not possible using previous paradigms, because they allow the trader only to examine the impact of local cash and foreign futures markets in separate settings. © 1999 John Wiley & Sons, Inc. Jrl Fut Mark 19: 523–540, 1999     

高质量发展视域下棉花目标价格补贴方式的重构

改进棉花补贴方式是深化棉花目标价格改革的重要内容。通过梳理和分析2014年以来我国棉花目标价格补贴方式及其利弊,探讨了不同补贴方式存在的套补空间,进而提出了适宜当前棉花产业高质量发展的新型棉花目标价格补贴方式--按有效补贴面积进行补贴。新型补贴方式以"面积优先、突出质量、兼顾产量"为导向,运用乘法模型整合了植棉面积、产量和质量等因素,不仅能够体现优质优补,还能够减少政策漏洞。统计模拟结果显示,新型补贴方式能够使套补者获得的补贴溢额比重由0.18‰降至0.08‰。     

Financial market volatility

The volatility of financial markets has attracted a lot of attention in recent years. However, while particular episodes, such as the bond market turbulence in 1994 and considerable exchange rate movements in 1995, may give the impression that markets have become more volatile, there appears to have been no systematic increase in volatility over the last 20 years in major industrialised countries.