BE/ME and E/P work better than ME/BE or P/E in regressions

Researchers often form ratios of variables to measure firm characteristics, but which ratios create the most powerful tests? For example, if we use ratios of book value of equity (BE) and market value of equity (ME), or earnings (E) and price (P), does it matter which variable appears in the denominator? Any variable in the denominator, when close to zero, creates outliers and is less likely to produce effective tests. Our tests, using data from 1972 to 2008, indicate the choice between reciprocals often produces significantly different outcomes. While ME/BE is a more commonly used control variable than BE/ME or LN(BE/ME), we find the latter two produce better results, even if the data are trimmed to mitigate the outlier problem. Similarly, using E/P generally produces better results than P/E, and while ratios with book value of assets (BA) in the numerator work better than those with it in the denominator, the difference is less pronounced than when BE or E is part of the ratio. While the focus of our empirical findings is on growth measures, the principal applies anytime a ratio has a denominator that is frequently near zero.     

Information technology innovation in India: The top 100 IT firms

Patents serve as an indicator of the innovation capability of countries, industries, or firms. Many Indian firms are in a transition to move from labor intensive segments to areas with higher value added which has been reflected in this research. The purpose of this study is to analyze patents issued during the period of 1997–2009 from the European Patent Office database and the United States Patent and Trademark Office database from the top one hundred Indian information technology firms. This study represents a novel empirical look at information technology industry innovations in India. A comprehensive set of statistical patent analyses are presented to provide practitioners with valuable knowledge to assist in business strategic planning.     

ASYMPTOTICS OF IMPLIED VOLATILITY IN LOCAL VOLATILITY MODELS

Using an expansion of the transition density function of a one‐dimensional time inhomogeneous diffusion, we obtain the first‐ and second‐order terms in the short time asymptotics of European call option prices. The method described can be generalized to any order. We then use these option prices approximations to calculate the first‐ and second‐order deviation of the implied volatility from its leading value and obtain approximations which we numerically demonstrate to be highly accurate.     

A Fallen Idol? Japanese Management in the 1990s

The authors argue that the elevation of Japanese manufacturing management in the West rested on the idea that superior performance resulted from new productive techniques and different systems of management. The object of this article is to shift the balance of placing more weight on structural factors and less on management success or failure. Attention is drawn to the fact that Japanese industry operated in a favourable domestic environment. Output expansion at home and a favourable social settlement (wages, hours worked) operated to ensure that exports, sold in markets where quite different social settlements set higher prices, generated a great deal of cash for Japanese producers. It is argued that the erosion, if not disappearance, of these favourable conditions from the mid-1980s onward has contributed substantially to the recent difficulties of Japanese producers.     

Too Popular to Ignore: The Influence of Online Reviews on Purchase Intentions of Search and Experience Products

Consumers assess the credibility of online product reviews to guide their purchase decisions. However, little is known about how consumers determine the credibility of online product reviews. This article examines the effect of the level of detail in a product review and the level of reviewer agreement with it on the credibility of a review and consumers' purchase intentions for search and experience products. Overall, the results indicate that more credible reviews lead to higher purchase intentions. Interestingly, the findings also demonstrate that consumers determine the credibility of a review differently for search and experience products. For search products, consumers deem online reviews to be more credible when the reviews contain detailed information about the product. However, for experience products, consumers determine the credibility of a review by assessing the level of reviewer agreement with a review. The lack of diagnosticity of detailed information in online reviews of experience products is attributed to the idiosyncratic nature of experiences. Implications for research and practice are discussed.     

What is professional attire today? A conjoint analysis of personal presentation attributes

Personal presentation attributes have long been understood to affect perceptions of competence and capabilities. To that end, this study investigates seven attributes associated with favorable interview presentation, including overall physical attractiveness, neatness and grooming, clothing color, conservative versus trendy attire, professional versus casual attire, and body modification (including tattoos and piercings). Participants (n = 108), including students, faculty, and hospitality industry professionals, sorted an orthogonal array of 16 full-color, laminated cards that contained photos so that respondents could see levels of clothing color, clothing conservativeness, and degree of professional attire. The remaining attributes and their corresponding levels were shown on respective analog indicators. The conjoint analysis results indicate that grooming and professional attire are the most important attributes in shaping favorable perceptions. Furthermore, faculty perceived conservative clothing to be better while students and industry professionals indicated that trendy clothing creates a more favorable presentation on the part of a job candidate.     

Sinking Ships? Liberal Theorists on the American Economy

In the Asia-Pacific region, the conditions and consequences of East Asian success have understandably attracted more attention than the causes and implications of North American failure. In the American case, any failure must be relative when the US remains a bloc-sized market and the only surviving superpower. Thus, for Asians the US figures economically as an export opportunity and socially, for puritans like Lee Kuan Yew, as a warning about decadence. The discussion among Americans is altogether more interesting. This article analyses the debate about national competitiveness among American liberal democrats like Magaziner, Reich, Tyson and Krugman and looks behind the differences of position that separate these protagonists, with two conclusions. First, as the old 1980s problem of national uncompetitivencss is jettisoned in the 1990s; all the liberals now agree that Americans are no longer in the same boat, that while some are becoming increasingly successful, others are sinking fast. Second; the protagonists have moved from an industrial policy fix in the 1980s to an end of policy era in the 1990s where the question for American liberals is whether and how the political system can absorb the stresses createted by increasing inequality.