An ecological economic simulation model for assessing fire and grazing management effects on mesquite rangelands in Texas

In the southern Great Plains of North America, fire exclusion has contributed to many rangelands converting from native grassland to woody shrublands dominated by mesquite (Prosopis glandulosa Torr.) and cactus (Opuntia spp.), threatening ecosystem health and human livelihoods in the region. Prescribed fire is the least expensive method of treating mesquite and other undesirable plants, but its role is as a maintenance treatment to prolong the life of more expensive brush control treatments. Using a simulation model of a hypothetical 1000 ha ranch, we evaluate the biological and economic implications of management scenarios involving the regular application of summer fire to reduce mesquite and cactus over a 30-year time period. We compared the model output with experimental data to corroborate model output before evaluating various management scenarios over a range of stocking rates. Scenarios included (a) varying initial range condition, (b) different frequencies of summer burning, and (c) different initial amounts of mesquite brush. Model simulations corroborated field data sufficiently well to give confidence in the output of the model. In our simulations the option of not treating to reduce brush and cactus had a major negative impact on range condition, secondary productivity and profitability. In contrast, all simulated fire treatments improved range condition, productivity and profitability except when initial range condition was poor. Initial range condition and stocking rate were the major factors affecting both productivity and profitability. Compared to other factors over which managers have short-term control, frequency of burning and the initial amount of mesquite cover, had a relatively minor impact. Simulations indicated that the highest level of profit consistent with maintaining or improving range condition was attained when individual animal production was 92-95% that of the maximum production per animal, a situation invariably associated with relatively low stocking rates.     

Research Productivity in Business Economics: An Investigation of Austrian,German and Swiss Universities

Abstract. We draw on a new and comprehensive dataset that collects the research output of business economists employed by Austrian, German and Swiss universities. We compute research rankings of departments and identify the leading departments in selected subdisciplines. Moreover, we investigate how institutional design and individual characteristics affect research productivity and draw some conclusions for the training of junior scientists.     

Enhancing financial performance by pharmacy innovation

Antecedents and consequences of customer orientation have been the subject of significant empirical investigation. Although several studies have explored employee variables as antecedents to customer orientation, work ethic has received little research attention. Additionally, there have been incongruent findings related to the effect of customer orientation on performance, as some have found it to be direct or indirect via innovation. This study explores overall work ethic as an antecedent to customer orientation and innovativeness as the missing link between customer orientation and performance among Canadian retail pharmacies. The results show support for the influence of work ethic on customer orientation, and the role of innovation as a mediating variable. This study advances the understanding of work ethic, customer orientation, innovation, and performance in Canadian retail pharmacy.     

Factors influencing divestment decision-making: Evidence from a field study

This research investigates factors which influenced the corporate-level divestment decisions of large, diversified firms. Field research, including interviews with corporate executives of 40 large diversified firms, provided the data to test propositions developed from various literature sources. In general, thefindings from this research indicate that a business unit's strength, its relationship to other units in its firm and its parent firm's financial position compared to its competitors are important divestment influences, whereas other factors such as general economic conditions are not. Some of the findings are consistent with conventional management wisdom, but others are counterintuitive.     

Empirically derived models of strategic decision-making processes

This paper reports on an empirical study of strategic decision-making processes and organizational learning in 32 business organizations facing complex environments. The decision processes were found to vary in four prototypical patterns described here as the strategic decision-making models. These models are proposed as an initial step towards the development of a taxonomy of strategic decision processes. The relationships between strategic decision-making models and organizational learning systems that support them are explored. These models may help researchers to conceptualize and practitioners to manage strategy formulation processes in organizations.     

Intellektuelles Kapital — Konzeptualisierung und Messung von Wissen als Produktionsfaktor

Ohne Zusammenfassung     

The influence of branding on adolescent smoking behaviour: exploring the mediating role of image and attitudes

• This study investigates the continuing effects of tobacco marketing communications in a post advertising era, focusing on the constructs of brand awareness, brand image, attitude formation and intention to smoke by adolescents.
• A conceptual model is presented, based on 926 respondents from a UK wide study, to assess brand‐related interrelationships and influences of peers on adolescents' attitudes toward smoking and intention to smoke.
• Results show the strong influence of branding on both attitude and intention, and have implications for government anti‐smoking policies specifically in regard to generic packaging and point of sale displays.

Copyright © 2007 John Wiley & Sons, Ltd.