An Improved Approach to Computing Implied Volatility

A well‐known problem in finance is the absence of a closed form solution for volatility in common option pricing models. Several approaches have been developed to provide closed form approximations to volatility. This paper examines Chance's (1993, 1996) model, Corrado and Miller's (1996) model and Bharadia, Christofides and Salkin's (1996) model for approximating implied volatility. We develop a simplified extension of Chance's model that has greater accuracy than previous models. Our tests indicate dramatically improved results.     

Return distributions and volatility forecasting in metal futures markets: Evidence from gold,silver, and copper

The characterization of return distributions and forecast of asset‐price variability play a critical role in the study of financial markets. This study estimates four measures of integrated volatility—daily absolute returns, realized volatility, realized bipower volatility, and integrated volatility via Fourier transformation (IVFT)—for gold, silver, and copper by using high‐frequency data for the period 1999 through 2008. The distributional properties are investigated by applying recently developed jump detection procedures and by constructing financial‐time return series. The predictive ability of a GARCH (1,1) forecasting model that uses various volatility measures is also examined. Three important findings are reported. First, the magnitude of the IVFT volatility estimate is the greatest among the four volatility measures. Second, the return distributions of the three markets are not normal. However, when returns are standardized by IVFT and realized volatility, the corresponding return distributions bear closer resemblance to a normal distribution. Notably, the application of financial‐time sampling technique is helpful in obtaining a normal distribution. Finally, the IVFT and realized volatility proxies produce the smallest forecasting errors, and increasing the time frequency of estimating integrated volatility does not necessarily improve forecast accuracy. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 31:55–80, 2011     

Dividend Initiations and Asymmetric Information: A Hazard Model

This paper investigates the dynamics of dividend policy using a hazard model. Specifically, the paper examines dividend initiations for a sample of firms that went public between 1990 and 1997. These dividend initiations are examined in the context of an alternative explanation based on the pecking order theory. The results indicate that the probability or the hazard rate of a dividend initiation is negatively related to both the level of asymmetric information and growth opportunities and positively related to the level of cash flow. These results are consistent with a pecking order explanation but inconsistent with a signaling explanation.     

The Asymmetric Response of Equity REIT Returns to Inflation

This paper posits that the failure of past studies to document a positive relationship between REIT (Real Estate Investment Trust) returns and inflation is an artifact of the empirical framework that has predominated in these studies. Applying a pooled estimation methodology to an expansive data set containing 195 publicly traded equity REITs for the period 1981–2002, the study documents a strong asymmetry in the response of equity REIT returns to inflation. Specifically, when expected and unexpected inflation are separated into positive and negative changes, results indicate that equity REIT returns rise in response to both increases and decreases in inflation. The evidence, which is partly contingent on the prevailing monetary policy environment, carries important policy implications for portfolio management and provides insights into the observed anomalous relationship between REITs and inflation.     

CHINESE POVERTY: ASSESSING THE IMPACT OF ALTERNATIVE ASSUMPTIONS

This paper investigates how estimates of the extent and trend of consumption poverty in China between 1990 and 2004 vary as a result of alternative plausible assumptions concerning the poverty line and estimated levels of consumption. Our methodology focuses on the following sources of variation: purchasing power exchange rates (used to convert an international poverty line), alternative levels and distributions of private incomes, alternative estimates of the propensity to consume of different income groups, and alternative spatial and temporal price indices. We report national, urban and rural poverty estimates corresponding to distinct assumptions. It is widely believed that substantial poverty reduction took place in China in the 1990s, and we find this conclusion to be largely robust to the choice of assumptions, although estimates of the extent of Chinese poverty, and therefore of world poverty, in any year are greatly influenced by this choice.     

Cultural influences on cross-border vacationing

This study investigates the impact of cultural variables on cross-border vacationing in the Western New York-Southern Ontario region in North America and the Hong Kong-Shenzhen area in Asia. A survey of 635 cross-border vacationers in the two regions indicates that economic, quality, and service variables and the affective pleasure of vacationing in a foreign environment exert effects on vacationers' perceptions, behavior, and satisfaction predicted on the basis of the levels of individualism, uncertainty avoidance, and time orientation prevalent in those border regions.     

Insidious Effects of Syntactic Complexity: Are Ads Targeting Older Adults Too Complex to Remember?

This research examines the role of syntactic complexity—complexity induced by the sentence structure of the text—on memory for print ads. The authors find that ads aimed at older adults contain significant complexity, which commonly used readability indexes fail to detect. Further, syntactic complexity adversely affects message recall in older (age 65 and up), but not younger, adults. This adverse effect of syntactic complexity on memory continues even when motivation to process the message is high. The authors discuss the implications of these findings.     

Impact of macroeconomic news on metal futures

This paper uses intra-day data for the period 2002 through 2008 to examine the intensity, direction, and speed of impact of US macroeconomic news announcements on the return, volatility and trading volume of three important commodities - gold, silver and copper futures. We find that the response of metal futures to economic news surprises is both swift and significant, with the 8:30 am set of announcements - in particular, nonfarm payrolls and durable goods orders - having the largest impact. Furthermore, announcements that reflect an unexpected improvement in the economy tend to have a negative impact on gold and silver prices; however, they tend to have a positive effect on copper prices. In comparison, realized volatility and volume for all three metals are positively influenced by economic news. Finally, there is evidence that several news announcements exert an asymmetric impact on market activity variables.