On the distributional effects of income in an aggregate consumption relation

Abstract .  In this paper we analyse the influence of characteristics of the income distribution in modelling aggregate consumption expenditure. We model the aggregate consumption relation of a heterogeneous population, using a statistical distributional approach of aggregation, and apply it to UK-Family Expenditure Survey data. A bootstrap test based on a non-parametric estimation methodology, which accounts for the presence of continuous and discrete variables, suggests that the mean and the dispersion of the income distribution significantly influence aggregate consumption expenditure. Also, the parameters of the aggregate relation are time varying. These findings have implications for constructing empirically sound models of aggregate consumption expenditure.     

Mass Media Orientation and External Communication Strategies: Exploring Organisational Differences

This study assesses relationships between mass media orientations of communication professionals in organisations and their external communication strategies. We assume that mass media orientations within an organisation may affect an organisation’s external communication strategies of bridging and buffering. A survey among 150 Dutch communication professionals working for both for-profit and public organisations as well as NPOs was conducted. Our study shows that preferences for specific communication strategies are related to different forms of media orientation. Having media attention as an organisational goal is more strongly associated with buffering, that is, one-way and symmetric communication, yet a more negative attitude toward the media also hinders an organisation from bridging activities. Overall, few differences between the three types of organisations regarding communication strategies and media orientations were found.     

Consumer Power: Evolution in the Digital Age

The predictions of growing consumer power in the digital age that predated the turn of the century were fueled by the rise of the Internet, then reignited by social media. This article explores the intersection of consumer behavior and digital media by clearly defining consumer power and empowerment in Internet and social media contexts and by presenting a theoretical framework of four distinct consumer power sources: demand-, information-, network-, and crowd-based power. Furthermore, we highlight technology's evolutionary role in the development of these power sources and discuss the nature of shifts in power from marketers to consumers in terms of each source. The framework organizes prior marketing literature on Internet-enabled consumer empowerment and highlights gaps in current research. Specific research questions are elaborated for each source of power outlining the agenda for future research areas.     

The influence of personality on active and passive use of social networking sites

Managers are more and more interested in social networking sites because they provide opportunities for strengthening relationships with customers as well as site content and service. Using social networking sites effectively, however, depends on understanding both the psychological attributes and social interactions of participants. This paper addresses these topics by presenting the results of a two‐study inquiry into the importance of two personality traits (consumer innovativeness and expressiveness) to active and passive use of social networks among Italian consumers. In Study 1 ( n = 753) it was found that innovativeness is positively related to active and passive use. Study 2 ( n = 277) revealed that self‐identity expressiveness and social identity expressiveness positively influence only active use. These results suggest that managers need to distinguish bet‐ween, and differentially encourage, joining and browsing such sites on the one hand and actively contributing to them on the other. Managers can also enhance the impact of their social networking sites by taking into account social and self‐identity expressiveness to increase affiliation and market share and by encouraging consumers to use these sites actively. © 2011 Wiley Periodicals, Inc.     

Accurate environmental bioindication in floodplains in spite of an extreme flood event

The ecological reaction of species on environmental factors can differ both, temporally and geographically. Therefore, bioindicator systems must be shown to remain accurate at different places and points of time. Extreme events pose challenges for testing this robustness, which has not yet been explored systematically. The unique opportunity of the extreme flooding of the river Elbe in August 2002 was used for such a test. The bioindicator system for mean groundwater depth during the vegetation period and annual duration of inundation in floodplains studied here was developed with data collected in 1999. Data from 2003 were used to analyse the dependence of the bioindication results on the humidity of the study plots and taxonomic group (plants, molluscs and carabid beetles). For the duration of inundation, the accuracy of bioindication in 2003 was similar to that in 1999, except for the medium‐humid and dry plots using molluscs as indicators. For groundwater depth, the accuracy of bioindication in 2003 was similar to that of the reference year except in the dry plots with significantly lower accuracy for all species groups. With a few exceptions, the bioindicator system is shown to be robust and to remain accurate in spite of an extreme flood event. In conclusion, the relevance of extreme events for the robustness of bioindicator systems differs between the indicated parameters and taxonomic groups. The results stress the need to take into account the limits of the working range and the occurrence of extreme events, when testing and applying bioindicator systems. Copyright © 2009 John Wiley & Sons, Ltd.     

Mittelstand und EU-Osterweiterung

Viele Umfragen deuten auf eine massive Abwanderung des deutschen Mittelstands in die neuen EU-Beitrittsl?nder hin. Inwieweit kann dieser Exodus empirisch untermauert werden? In welchen Aktivit?ten engagieren sich die deutschen mittelst?ndischen Unternehmen in den Beitrittsl?ndern? Welche Chancen und Risiken erwarten sie von der Osterweiterung?     

The Paradox of Liberalization — Understanding Dualism and the Recovery of the German Political Economy

What do the recent trends in German economic development convey about the trajectory of change? Has liberalization prepared the German economy to deal with new challenges? What effects will liberalization have on the co‐ordinating capacities of economic institutions? This article argues that co‐ordination and liberalization are two sides of the same coin in the process of corporate restructuring in the face of economic shocks. Firms seek labour co‐operation in the face of tighter competitive pressures and exploit institutional advantages of co‐ordination. However, tighter co‐operation with core workers sharpened insider–outsider divisions and were built upon service sector cost cutting through liberalization. The combination of plant‐level restructuring and social policy change forms a trajectory of institutional adjustment of forming complementary economic segments which work under different rules. The process is driven by producer coalitions of export‐oriented firms and core workers’ representatives, rather than by firms per se.     

Diabetes im hohen Alter meistern

Diabetes mellitus ist eine klassische Alterserkrankung, die zudem selten allein kommt. Daher sind die wichtigsten Therapieziele für geriatrische Patienten mit Diabetes mellitus die Bewahrung der Lebensqualit?t, der Erhalt der physischen, psychischen und sozialen Kompetenz sowie Eigenst?ndigkeit.