Science and Corporate Strategy: A Bibliometric Update of Hounshell and Smith

Hounshell and Smith's Science and Corporate Strategy: DuPont R&D, 1902- 1980 is one of the most comprehensive business history books ever written. In addition, it highlights the important relationship between corporate strategy and R&D activities. The purpose of this current paper is to update the information on DuPont's R&D activities using secondary data and bibliometrics. Our findings are that DuPont underwent a series of dramatic shifts in their R&D efforts during the 1980s and into the 1990s. For example, there was a focus on life sciences, a concerted attempt to reduce R&D, and an endeavour to align R&D more with core businesses. Beyond the bibliometrics, we found that corporate performance and changes in the top management team may have precipitated these changes in R&D. The implications of such relationships are also discussed.     

Producers Get Squeezed up the Farming Food Chain: A Theory of Crop Portfolio Composition and Land Use

There are a number of seemingly contradictory trends in the structure of American agriculture. For example, total revenues from agriculture in the United States continue to increase nearly every year, yet the total acreage of land in farms continues to decrease. This article presents an explanation using portfolio theory that is consistent both with the trends and with rational behavior of individual producers. The results have implications for commodity markets, land prices, and, in the long run, for the economic viability of American production agriculture.     

A two-state analysis of estate taxes and charitable bequests from the most generous decedents

This study uses Censored Quantile Regression (CQR) and probate records for the years 2000–2005 to analyze charitable bequests of the most generous decedents from two states, Virginia and Louisiana. We focus on the most generous decedents because they account for a large portion of total charitable bequests. The most generous decedents' charitable bequest tax price (i.e., one minus the marginal tax rate) elasticity is not significantly greater than one in both our full sample and the subsample of the decedents filing federal estate tax returns. Our finding suggests that allowing charitable bequests to be deductible is not a treasury efficient policy for the most generous decedents. We also find that the tax price and wealth effects for the most generous decedents are overestimated by the Tobit model that has been traditionally utilized by prior studies. Furthermore, filers' charitable bequests are predicted to decrease if the estate tax is repealed.     

An Empirical Comparison of the Four Channel Flow Model and Adventure Experience Paradigm

The objective of this study was to conduct empirical comparisons between two models of optimal experience within an on-site whitewater kayaking setting using a modification of the Experience Sampling Method. Four concerns are examined: (1) differences in explanatory power between the four channel flow model and the Adventure Experience Paradigm, (2) convergent validity among measures used to determine conditions within these models, (3) differences among measures of perceived challenge and risk between test times of Class I-V river difficulty, and (4) differences among measures of perceived skill and competence between test times of Class I-V river difficulty. Questionnaires were administered in the Cheat River Canyon in West Virginia to 52 whitewater kayakers at eight sites of various levels of river difficulty. Data were analyzed at the experience level, rather than between subjects, using 409 experience sampling observations. Hypothesis testing, performed with statistical analyses (stepwise regression, correlations, and repeated measures ANOVA), suggested that the explanatory powers of the four channel flow model and Adventure Experience Paradigm were similar and indicated support for convergent and ecological validity of measures used to determine conditions within each of the two models.     

Experienced and Novice Investors: Does Environmental Information Influence Investment Allocation Decisions?

Economic Value Added (EVA) is a performance measure that is being used by an increasing number of companies, but academic research on EVA is limited. In addition, all prior empirical academic studies on EVA have used the firm as the unit of analysis. In this study, we examine the effect of EVA on the performance of individual managers. Specifically, we examine whether managers on EVA-based bonus plans outperform managers on traditional accounting-based bonus plans. We are able to test this because we have access to an EVA-focused company that has managers on both EVA and traditional bonus plans. Our results suggest that managers on EVA bonus plans who understand the EVA concept perform better than managers on traditional bonus plans. However, we find some evidence that the increase in performance results from increased consistency or congruence in the manager's evaluation–reward process rather than from superiority of EVA as a performance measure. Also, we find that the effect of EVA bonuses and EVA understanding differs depending on the area of the firm in which the manager is employed. This suggests that EVA may not be a universally appropriate base for reward systems. *Mohan Lal passed away 24 July 2002. This paper is dedicated to him.     

An integrative model of e-learning use: Leveraging theory to understand and increase usage

Employees are increasingly using technology to access content for learning, and theory development has been outpaced by practice. Drawing on a well validated theory of behavior change (the Transtheoretical Model of Change), as well as theories on technology acceptance and employee development, this paper offers an integrative model of factors that influence employee use of e-learning as well as practical recommendations for how use might be increased. Recommendations for future research on e-learning are also offered.     

The analytics of search with posted prices

Summary. This paper investigates the characteristics of the optimal posted price in the standard sequential search paradigm. Much of the intuition gleaned from the extensive sequential search literature in which the seller adopts a reservation price does not carry over to the posted price setting. For example, an increase in buyer valuations can lead to a reduction in the optimal posted price. We do, however, provide sufficient conditions on the hazard rate function h which ensure that an increase in demand induces an increase in the optimal posted price. As exhibited herein, the analysis of the posted price model depends critically upon analytical properties of h. Amongst the issues treated are the elasticity of demand, finite horizon, sale of multiple units, and competitive equilibrium. Received: October 21, 1999; revised version: March 7, 2000     

Time Deformation in UK Consumers' Expenditure

Cook, Holly and Turner recently developed a hypothesis of a positive relationship between the durability of consumers' expenditure and the asymmetric behaviour it exhibits. Supportive evidence was found by applying Sichel's tests of business cycle asymmetry to the component series of UK consumers' expenditure, which represent goods of differing durability. In this paper the relationship is re‐examined using the original data, by implementing Stock's diagnostic tests of time deformation. The results provide further support for the durability–asymmetry hypothesis.