Rules versus discretion - A disinflation case

This paper compares a strict inflation target regime to a conservative central bank regime to determine the monetary regime appropriate for a disinflation process. The analysis shows that in a two-period model, in which policymakers face given first-period inflationary expectations, a strict inflation target could be preferred to the appointment of a conservative central banker who has discretion. The result differs from that of Rogoff (1985), who assumed rational expectations and concluded that a conservative central banker is always preferable. The disadvantage of the conservative central banker derives from his tendency to accelerate disinflation relative to rate that maximizes social welfare.JEL Classification: E52, E58The authors are grateful to Alex Cukierman, Nissan Liviatan, Allan Drazen, Amit Friedman and Yoav Friedmann for their useful suggestions. We also thank the anonymous referees for helpful comments. Earlier versions of this paper were presented at the Tel Aviv University macroeconomic workshop, at the Research Department seminar, Bank of Israel, and at the Bank of Israels conference on Macroeconomic Policy, October 2002.     

Evidence on the Trade-Off between Risk and Return for IPO and SEO Firms

Do the low long‐run average returns of equity issuers reflect underperformance due to mispricing or the risk characteristics of the issuing firms? We shed new light on this question by examining how institutional lenders price loans of equity issuing firms. Accounting for standard risk factors, we find that equity issuing firms' expected debt return is equivalent to the expected debt return of nonissuing firms, implying that institutional lenders perceive equity issuers to be as risky as similar nonissuing firms. In general, institutional lenders perceive small and high book‐to‐market borrowers as systematically riskier than larger borrowers with low book‐to‐market ratios, consistent with the asset pricing approach in Fama and French (1993) . Finally, we find that firms' expected debt returns decline after equity offerings, consistent with recent theoretical arguments suggesting that firm risk should decline following an equity offering. Overall, our analysis provides novel evidence consistent with risk‐based explanations for the observed equity returns following IPOs and SEOs.     

Responding Destructively in Leadership Situations: The Role of Personal Values and Problem Construction

This study explored the influence of personal values on destructive leader behavior. Student participants completed a managerial assessment center that presented them with ambiguous leadership decisions and problems. Destructive behavior was defined as harming organizational members or striving for short-term gains over long-term organizational goals. Results revealed that individuals with self-enhancement values were more destructive than individuals with self-transcendence values were, with the core values of power (self-enhancement) and universalism (self-transcendence) being most influential. Results also showed that individuals defined and structured leadership problems in a manner that reflected their value systems, which in turn affected the problem solutions they generated.     

Beliefs about social responsibility at work: comparisons between managers and non‐managers over time and cross‐nationally

We examine the link between the growing emphasis on corporate social responsibility at the organizational level and beliefs about social responsibility at work (SRW) expressed by individuals. Drawing from theories of professionalism and diffusion of innovations (including practices and beliefs), we advance hypotheses about beliefs of managers and non‐managers in 11 countries at two time periods, and use a unique international data set to test our hypotheses. Our general prediction that managers would score higher than non‐managers on a measure of SRW was not supported. However, further analysis revealed a more complex relationship moderated by the contextual factors of time frame and country inequality level. We discuss implications and extensions for future research.     

Finding your innovation sweet spot

Most new product ideas are either uninspired or impractical. So how can developers hit the innovation sweet spot--far enough from existing products to attract real interest but close enough that they are feasible to make and market? They can apply five innovation patterns that manipulate existing components of a product and its immediate environment to come up with something both ingenious and viable, say the authors. The subtraction pattern works by removing product components, particularly those that seem desirable or indispensable. Think of the legless high chair that attaches to the kitchen table. The multiplication pattern makes one or more copies of an existing component, then alters those copies in some important way. For example, the Gillette double-bladed razor features a second blade that cuts whiskers at a slightly different angle. By dividing an existing product into its component parts--the division pattern--you can see something that was an integrated whole in an entirely different light. Think of the modern home stereo--it has modular speakers, tuners, and CD and tape players, which allow users to customize their sound systems. The task unification pattern involves assigning a new task to an existing product element or environmental attribute, thereby unifying two tasks in a single component. An example is the defrosting filament in an automobile windshield that also serves as a radio antenna. Finally, the attribute dependency pattern alters or creates the dependent relationships between a product and its environment. For example, by creating a dependent relationship between lens color and external lighting conditions, eyeglass developers came up with a lens that changes color when exposed to sunlight.     

Dynamic Volume-Return Relation of Individual Stocks

We examine the dynamic relation between return and volume ofindividual stocks. Using a simple model in which investors tradeto share risk or speculate on private information, we show thatreturns generated by risk-sharing trades tend to reverse themselves,while returns generated by speculative trades tend to continuethemselves. We test this theoretical prediction by analyzingthe relation between daily volume and first-order return autocorrelationfor individual stocks listed on the NYSE and AMEX. We find thatthe cross-sectional variation in the relation between volumeand return autocorrelation is related to the extent of informedtrading in a manner consistent with the theoretical prediction.