Russia’s foreign trade and the economic reforms

The Russian Federation now faces a totally new beginning as regards the shaping of its foreign trade relations. The demands made upon its external economic policy by the changes in the political and economic systems on the one hand and the collapse of the formerly unified economic zone of the Soviet Union on the other are so great that, in many respects, consistent answers have yet to be found. To what extent has the Russian government so far succeeded in developing a new foreign trade regime?     

Attitudes Towards Risk: An Experiment

The evaluations of a repeated lottery with and without the option to sell the second–stage lottery are compared theoretically and experimentally. Comparing individuals’ risk attitudes, we find that risk attitudes differ depending on the measure of risk attitude applied. We also find that subjects show low or no risk aversion, but put very high value on the opportunity to sell the lottery in the second stage of the decision problem. These findings cast doubts on the suitability of the random price mechanism for truthful revelation of willingness to pay in sequential decision problems.     

Kurzarbeit — Sinnvoller Konjunkturpuffer oder verlängertes Arbeitslosengeld?

Zusammenfassung  Zur überwindung der aktuellen Krise wird nicht nur in Deutschland das Instrument der Kurzarbeit verwendet. Es ist in Deutschland im Vergleich zu anderen L?ndern jedoch sehr gro?zügig gestaltet und wurde kürzlich sogar noch ausgeweitet. Damit besteht die Gefahr, dass nicht nur — wie beabsichtigt — bei einem vorübergehenden Arbeitsausfall Entlassungen verhindert werden, sondern notwendige strukturelle Anpassungen verz?gert werden. Wie ist die Ausgestaltung der deutschen Kurzarbeit zu bewerten? Dr. Werner Eichhorst, 40, ist stellvertretender Direktor am Institut zur Zukunft der Arbeit, IZA in Bonn; Paul Marx, 26, Dipl.-Politologe, ist dort als Doktorand t?tig. Erweiterte und aktualisierte Fassung von W. Eichhorst, P. Marx: Le ch?mage partiel, ammortisateur social de la crise?, in: Regards sur l’Economie Allemande, H. 90, S. 23–30.     

How should Engel's law be formulated?

Engel's law expresses a “negative stochastic association” of income and the proportion of income that is spent on food. However, there are many quite different notions of “negative stochastic association” and consequently there are different ways of defining Engel's law. We relate these different concepts to Engel's original statistical analysis and show that one must give credit to Engel for the first non-parametric statistical analysis of budget-data.     

MODELING ON THE BASIS OF MODELS

A large part of official economic data sets is produced with the help of assumed functional relations between variables. Constructing economic models on the basis of such model-generated data results in a "modeling on the basis of the results of modeling." This common procedure can lead to consequences that seriously endanger the quality of empirical analyses. After discussing some of these dangerous consequences the authors explore the reasons behind this development. To avoid some of the most severe difficulties a "Charter for Compilation and Correct Handling of Economic Data" is proposed.     

Marketing sustainable tourism: the role of value orientation,well-being and credibility

Abstract

Marketing for sustainable tourism primarily attracts customers with a biospheric–altruistic value orientation. To reach a broader consumer group and also persuade people with a self-enhancement orientation to book sustainable hotels, the effectiveness of three different communication styles (emotionality levels, amount of sustainability information and inclusion of a label) is investigated, considering the consumer’s value orientation. An experiment with 337 participants was conducted to analyze the effects of communication on consumer perceptions of well-being and credibility. Multigroup structural equation modeling was used to compare the impacts of communication style on participant’s attitude toward booking a sustainable hotel, mediated by well-being and credibility. The results highlight significantly different communication effects among the two contrasting target groups. Consumers who are highly interested in sustainability (biospheric–altruistic value orientation) are persuaded by messages that include details about the hotel’s sustainability performance, in order to increase the social–environmental well-being, whereas for customers who are less interested in sustainability (self-enhancement value orientation), a self-referential emotionally communication is essential, as it increases the emotional well-being. Inconsistent findings regarding the role of communication in raising the perception of credibility were obtained.     

An empirical comparison of the efficacy of covariance-based and variance-based SEM

Variance-based SEM, also known under the term partial least squares (PLS) analysis, is an approach that has gained increasing interest among marketing researchers in recent years. During the last 25 years, more than 30 articles have been published in leading marketing journals that have applied this approach instead of the more traditional alternative of covariance-based SEM (CBSEM). However, although an analysis of these previous publications shows that there seems to be at least an implicit agreement about the factors that should drive the choice between PLS analysis and CBSEM, no research has until now empirically compared the performance of these approaches given a set of different conditions. Our study addresses this open question by conducting a large-scale Monte-Carlo simulation. We show that justifying the choice of PLS due to a lack of assumptions regarding indicator distribution and measurement scale is often inappropriate, as CBSEM proves extremely robust with respect to violations of its underlying distributional assumptions. Additionally, CBSEM clearly outperforms PLS in terms of parameter consistency and is preferable in terms of parameter accuracy as long as the sample size exceeds a certain threshold (250 observations). Nevertheless, PLS analysis should be preferred when the emphasis is on prediction and theory development, as the statistical power of PLS is always larger than or equal to that of CBSEM; already, 100 observations can be sufficient to achieve acceptable levels of statistical power given a certain quality of the measurement model.