Hedonic pricing and the spatial structure of housing data – an application to Berlin

Housing prices are largely determined by physical location. By applying the outsample prediction accuracy of rental prices as evaluation criteria, we examine whether the choice of the hedonic model additionally depends on the spatial structure of housing data, i.e. accounting for locational effects by either district fixed effects or spatial econometric modelling. Our results show that a generalised spatio-temporal model outperforms a district fixed effects model only if the spatial density – the weighted mean distance to nearest neighbours – is relatively small. Moreover, we use the required density thresholds to deduce a pseudo indifference curve, thereby showing that the ratio of the weighted spatial distance-to-the mean district diameter increases with the mean sample size per district. This emphasises the role of data structure and district choices for model selection. Differences in data can thereby serve as an explanation for contradictory findings in literature, whether spatial econometric methods or simple district fixed effects are used.     

Alle Sozialabgaben steuerlich berücksichtigen statt Solidaritätszuschlag abschaffen

The abolition of the German solidarity surcharge would favour higher incomes much more than lower incomes. Tax deductibility of all social contributions, however, would concentrate relief on average incomes, which are heavily loaded by social contributions. In addition, a monthly social security allowance of €150 could be introduced gradually in a budget-neutral manner.     

Index der wahrgenommenen Inflation oder EU-Verbraucherumfragen?

Nach der Euro-Umstellung Anfang 2002 entwickelte sich das Preisempfinden deutlich anders als der gemessene Verbraucherpreisindex. Inwieweit wird auch heute noch die Preisentwicklung von den Konsumenten übersch?tzt? Wie zuverl?ssig misst der von Hans Wolfgang Brachinger entwickelte „Index der wahrgenommenen Inflation“ dieses Ph?nomen? Zu welchen Ergebnissen kommen die von der EU-Kommission beauftragten Verbraucherumfragen? Die Verfasser geben ihre pers?nliche Auffassung wieder, die nicht unbedingt mit derjenigen der Deutschen Bundesbank übereinstimmen muss.     

A Proposal for the Efficient Taxation of All Business Income in the EU

There is a growing awareness in many EU member states that business taxation solely on the basis of “taxable profits” enables, in particular, multinational companies to avoid paying taxes, with negative consequences both for tax revenue and—in the longer run—also for the stability of the economy. The following article proposes the taxation of all compensation of capital—not only profit for equity, but also interest for outside capital and licence fees for outside rights—at the site of production.     

Regionalisation versus regionalism— Problems of change in the world economy

The distinct trends towards regionalisation in the world economy that could be observed in recent years should not be interpreted merely as the formation of economic blocs or “fortresses”. This would amount to adopting a biased, backward-looking approach that sees only the sombre experiences of the thirties and forties and does not take sufficient account of the different challenges of the post-war period.     

Humorous coping scales and their fit to a stress and coping framework

The focus of this study is on the fit between the item content of scales measuring humorous coping and basic concepts of stress and coping theory. To investigate this fit 81 items from seven currently available humorous coping scales have been subjected to a facet analysis, using the tool of a mapping sentence. Three facets derived from stress and coping theory were part of this mapping sentence: external demands, humorous responses and coping aims. Because of the claim that humorous coping may be related to physical health dimensions, special attention has been paid to two health-related coping aims: cognitive reappraisal and response-focused coping responses. Five raters categorized the facets and their respective categories. Some humorous coping scales showed an underrepresentation of “external demands” and “humorous responses” and only a few scales covered the “aims” facet adequately. Reliability and agreement parameters varied considerably among scales, both on facet level and on category level. The Waterloo University Humor Inventory (WUHI) was a positive exception to this pattern. Findings are discussed in the light of specific characteristics of the scales included. Possible improvements of humorous coping measurement in health-related research are proposed, as well as adaptations to the rating procedures.     

Determinants of how individuals choose,eat and waste: Providing common ground to enhance sustainable food consumption out‐of‐home

The transformation of food consumption in wealthy economies is regarded as an essential measure to reach global sustainability goals. However, existing policies and research activities to change food consumption in the increasingly relevant out‐of‐home sector relate to a wide set of options on how to influence behaviours and may be criticized to lack a general focus. Against this background, our study provides a structured review of the existing research body on the determinants of individuals’ food choices and food consumption out‐of‐home. It structures the various research approaches and findings for 110 selected papers according to a general ecological framework where personal, social and environmental determinants for food behaviours are considered. By providing a collective overview and linking results for different behavioural aspects and settings, this study supports a more general understanding of consumer food behaviour in out‐of‐home settings. Consequently, it also provides a means to identify research gaps and to suggest relevant aspects for future research to draw from the combination of findings and to enhance sustainability in food consumption.