This paper identifies patterns of cross-sectional and temporal price dispersion-in the Spanish online grocery retail market-and evaluates the extent to which search costs and chain heterogeneity explain such dispersion. We build a data set comprising 836,074 prices for the most popular grocery...

This paper examines a homogeneous-good Bertrand-Edgeworth oligopoly model to explore the role of firm size and number in pricing. We consider the price impact of merger, break up, investment, divestment, entry and exit. A merger leads to higher prices only when it increases the size of the...

For more than half a century, Manfred Deistler has been contributing to the construction of the rigorous theoretical foundations of the statistical analysis of time series and more general stochastic processes. Half a century of unremitting activity is not easily summarized in a few pages. In...

Despite some progress, German macroeconomists are generally dissatisfied with access to important data in Germany. Legal, technical and organisational obstacles abound, in particular as far as mergers of data sets from heterogeneous sources are concerned. This article suggests a number of...

Die Inflationsrate im Euroraum liegt seit knapp einem Jahr unterhalb der von der Europäischen Zentralbank angestrebten Zielmarke und wird voraussichtlich auch in der kommenden Zeit auf einem sehr niedrigen Niveau verharren. Zum einen steht eine solch geringe Inflation nicht im Einklang mit der...