Direct Management of COVID-19 at National and Subnational Level: The Case of the Western Amazon Countries

Public Organization Review - This paper analyses direct management of COVID-19 in Brazil, Colombia and Peru, the three largest countries in the Western Amazon region. Using information gathered...     

LOG-LINEAR MODELS FOR MEAN AND DISPERSION IN MIXED POISSON REGRESSION MODELS

This paper is concerned with the analysis of repeated measures count data overdispersed relative to a Poisson distribution, with the overdispersion possibly heterogeneous. To accommodate the overdispersion, the Poisson random variable is compounded with a gamma random variable, and both the mean of the Poisson and the variance of the gamma are modelled using log linear models. Maximum likelihood estimates (MLE) are then obtained. The paper also gives extended quasi-likelihood estimates for a more general class of compounding distributions which are shown to be approximations to the MLEs obtained for the gamma case. The theory is illustrated by modelling the determination of asbestos fibre intensity on membrane filters mounted on microscope slides.     

Relatioinships between economic and statistical price indices

In the following, the economic counterparts of Eichhorn's and Voeller's tests for statistical price indices will be studied. We will see that replacing the statistical Commensurability Axiom in the economic price index theory by a property which is only concerned with price changes leads to similar relationships between this one and several other tests as in the statistical price index theory.     

Die A-Moral der Wirtschaft und die Paradoxie ihrer Moralisierung

Following the argumentation of historico-genetic theory this contribution firstly aims to set out the societal conditions of the consitution of morality and analyse its structural limitations. In a further step it will be shown that the moralization of the economic system on the base of legally not binding CSR programs has to be considered as an innovative power strategy of the economic elites. Exemplarily this thesis will be explored on the basis of the CSR strategy of Austrian OMV AG. Why the political elites of the democratic systems in Austria and elsewhere easily can be manipulated by the logic of economy and nearly without critics accept neoliberal ideology of CSR—this question will be discussed at last.     

Zur Berücksichtigung von Heterogenit?t versus funktionaler Flexibilit?t in Absatzreaktionsmodellen: Eine empirische Studie auf Basis von Handelsdaten

In this paper, we explore the differences between store sales models that allow for heterogeneity in marketing effects across stores and models that accommodate potential irregularities in sales response through the use of nonparametric estimation techniques. In particular, we investigate the following question: What benefits can we gain from incorporating store heterogeneity versus functional flexibility in sales response models concerning fit and predictive validity, as compared to a simple parametric store sales model? In an empirical study based on store-level data, we also compare the different model versions with respect to estimated price elasticities and resulting shapes for own- and cross-price effects. Our empirical results indicate that addressing heterogeneity is not advantageous in general, as model fit, predictive validity and the accuracy of price elasticities did not improve for many brands. In contrast, estimating sales response flexibly provides much more potential for statistical improvements and leads to different implications concerning price elasticities, too.     

The dynamics of homeownership among the 50+ in Europe

We use life history data covering households in 13 European countries to analyse residential moves past the age of 50. We observe four types of moves: renting to owning, owning to renting, trading up or trading down for homeowners. We find that in the younger group (aged 50–64), trading up and purchase decisions prevail; in the older group (65+), trading down and selling are more common. Overall, moves are rare, particularly in countries characterised by high transaction costs. Most moves are driven by changes in household composition (divorce, widowhood, nest leaving by children), but economic factors play a role: low-income households who are house-rich and cash-poor are more likely to sell their home late in life.