The Austrian current account deficit: Driven by twin deficits or by intertemporal expenditure allocation?

The evidence presented in the paper rejects the twin deficit hypothesis for the Austrian current account balance during the last two decades. The results are based on an estimate of a vector error correction model including quarterly data for the current account balance and potentially relevant variables driving its dynamics. We compute the variance decomposition of the current account's forecast error and its generalized impulse responses to shocks in the innovations of the system. The results in favor of intertemporal expenditure reallocation cannot be reproduced within a second analysis including the current account and a measure of net output, however. The estimated implicit current account balance, interpreted as the discounted expected change in future net output, does not follow the actual behaviour of the current account. First version received: June 1999/Final version received: March 2001     

A framework to facilitate institutional arrangements for smallholder supply in developing countries: An agribusiness perspective

The industrialization of agriculture and the potential problem of small-scale farmer marginalization calls for a fresh approach to the design of agribusiness supply chain arrangements in developing countries. The objective of the paper is to contribute to a better understanding of institutional arrangements that can promote stable smallholder agribusiness contracting arrangements in a developing country context. A case study approach, incorporating a transaction cost framework, is used to test whether trust can significantly change the contract characteristics of supply. The results suggest that although the presence of trust can influence the contract characteristics of a supply arrangement, it may not be significant because of other factors in a developing country context. Bearing this in mind, a number of institutional arrangements are recommended in order to promote more stable contract conditions.     

A Probabilistic Clustering Model for Variables of Mixed Type

This paper develops a probabilistic clustering model for mixeddata. The model allows analysis of variables of mixed type: thevariables may be nominal, ordinal and/or quantitative. The modelcontains the well-known models of latent class analysis as submodels.As in latent class analysis, local independence of the variables isassumed. The parameters of the model are estimated by the EMalgorithm. Test statistics and goodness-of-fit measures are proposedfor model selection. Two artificial data sets show the usefulness ofthese tests. An empirical example completes the presentation.     

Leveraging Green IS in Logistics

Logistics and especially road transportation account for a major proportion of global greenhouse gas emissions. Thus, increasing eco-sustainability is particularly important in this sector. Green information systems can support the transition towards more eco-sustainable business processes in logistics. To date research in Green IS has been dominated by conceptual and empirical studies, while the community has been reluctant to do design science research developing IS artifacts. Addressing this gap, we develop and evaluate a Green IS artifact for GHG emission tracking in road transportation processes – named Carbon Tracker. The design process was guided by design principles derived from prior Green IS literature. The artifact enables more eco-sustainable practices in logistics to emerge as it provides detailed information about GHG emissions that is indispensable for advanced organizational sense- and decision-making. The evaluation shows that the use of Carbon Tracker leads to more accurate and detailed information on emissions as well as more seamless and efficient workflows than today’s best-practice approaches. Thus, the paper demonstrates how Green IS can be leveraged for more eco-sustainable and efficient business processes and paves the way for further design-oriented research in the Green IS domain.     

Ideenwettbewerbe als innovatives Markenbindungsinstrument

Onlinebasierte Ideenwettbewerbe mit Web 2.0-Funktionalit?ten bieten neue innovative M?glichkeiten im Online Marketing. Sie tragen dazu bei, die Bekanntheit und positive Wahrnehmung einer Marke in der ?ffentlichkeit zu st?rken. Konsumenten setzen sich intensiver mit einer Marke auseinander, was schlie?lich zu einer st?rkeren Identifikation mit der Marke und Bindung führt. Auch Swarovski, dem Kristall-Weltmarktführer, gelang durch diese Einbindung von Konsumenten der Erfolg.     

INNOVATION AND GROWTH WITH RICH AND POOR CONSUMERS

This work studies the impact of income inequality on the level of innovative activities in a model where innovations result in quality improvements. In contrast to the standard model of innovations and growth, the equilibrium outcome may be characterized by a situation where not only the quality leader but also producers of worse qualities are on the market. In that case the quality leader sells to the rich, whereas the producer of the second‐best quality sells to the poor. In general, we find that a more equal distribution of income is favourable for innovation incentives. This is consistent with empirical evidence suggesting that countries with a more equal distribution of income have grown faster.     

Solidarische Privatversicherung oder Bürgerprivatversicherung? Eine Replik

In der Juniausgabe ver?ffentlichte der Wirtschaftsdienst einen Aufsatz mit dem Titel „Die Solidarische Privatversicherung — Ein Vorschlag zur Gesundheitsstrukturreform“. Dieses Konzept diskutieren Johann Eekhoff und Christine Wolfgramm und stellen dem einen eigenen Vorschlag entgegen. Ulrich van Suntum erl?utert seine Sichtweise in einer Erwiderung.