Magnus Hoffmann

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If property rights to consumption goods are insecure, the incentives to trade in a barter economy are reshaped. In a pure exchange economy, we examine the case where two contestable consumption goods are vital to two agents and initial endowments follow a binary distribution. In line with the existing literature, we examine in a two–stage game how the(More)
  • M. Hoffmann
  • Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 2005
Survey of the propagation of the muskrat (Ondatra zibethicus L.) in eastern Asia In the last two decades the muskrat considerably enlarged its are in some of the eastern asiatic countries. A survey of the propagation ofO. zibethicus in this region is given. The centre of the spreadying is be found in Mongolia. Here the rodent came from the Sowjet Union and(More)
  • M. Hoffmann
  • Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 2005
A view is given of the expansion ofO. zibethica in South and South East Europe. Here the pest occupied enormous areas. The migration showes four chief directions. The coast of the Mediterranean Sea has'nt been reached till now, but it will be reached within some years. Es wird ein Überblick der Ausbreitung der Bisamratte in Süd- und Südosteuropa gegeben.(More)
The aim of the study was to investigate the impact of unit processing steps such as blending, cone milling and powder feeding systems on the particle size of a formulated API. The particle properties of a single component (API) within formulated samples were tracked using an image based particle characterisation system with an integrated Raman probe. In(More)
  • M. Hoffmann
  • Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 2005
With the intention of contributing to the history of muscrat-control a report is given on experiments made 1918 in Eastern Bavaria for the purpose of controlling this pest by means of some gases beeing rests of poison gases from World War I. The experiments showed negative results. To the report a document and a photo of this action are added. Um einen(More)
The aim of this study was to assess the impact of unit processes on the de-aggregation of a cohesive micronised API within a pharmaceutical formulation using near-infrared chemical imaging. The impact on the primary API particles was also investigated using an image-based particle characterization system with integrated Raman analysis. The blended material(More)
Employment protection affects labour market outcomes and hence the incentive to acquire skills. Using a matching model with two education levels in which workers decide ex-ante on their skill formation, it is shown that employment protection can raise the fraction of skilled workers. This will be the case if workers obtain a sufficiently large fraction of(More)
5 This paper examines simultaneous versus sequential choice of effort in a two6 player contest with a general contest success function. The timing of moves, 7 determined in a preplay stage prior to the contest-subgame, as well as the 8 value of the prize is allowed to be endogenous. Contrary to endogenous timing 9 models with an exogenously fixed prize the(More)
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