In this paper, we are going to reconsider the standard Viner Model [Viner, 1950] however under the premise of firm heterogeneity. By means of a graphical analysis we show that a consideration of the degree of firm heterogeneity is important for an evaluation of a preferential trade agreement....

[...] Die Einführung von Direktzahlungen zur Kompensation von Interventionspreissenkungen war ursprünglich eine wichtige Voraussetzung für die fundamentalen Reformen der GAP seit 1992, auch um Bestandsschutz für die im Vertrauen auf das politische Versprechen hoher Agrarpreise getätigten...

There has been an extensive discussion on the applicability of Poisson Pseudo Maximum Likelihood (PPML) to trade. Here, we are going to analyse again the performance of PPML but in the light of a bimodal distribution; in addition, we also explicitly account for excess zeros. Simulations are...

Recently, discussion about the appropriate estimation of gravity trade models has started in agriculture. Here, we are going to review recent developments in the literature. It appears that fixed effects Poisson Pseudo Maximum Likelihood is not only the only consistent estimator [Santos Silva...

For quite some time long-only index funds have been suspected of being responsible for price increases in agricultural futures markets. This suspicion has prompted demands to drastically limit long-only index funds' scope of activity. Such demands and their underlying diagnoses, however,...

Long-only-Indexfonds stehen seit geraumer Zeit unter Verdacht, für die Preisanstiege an landwirtschaftlichen Warenterminmärkten verantwortlich zu sein. Hieraus wird die Forderung abgleitet, den Aktivitätsradius dieser Indexfonds drastisch einzuschränken. Allerdings stehen solche Forderungen...

Supermarkets are gaining ground in agrifood systems of many developing countries. While recent research has analyzed income effects in the small farm sector, impacts on productivity and efficiency have hardly been studied. We use a meta-frontier approach and combine this with propensity score...

This paper analyses the technical efficiency of private farms in Slovenia. Both parametric and non-parametric frontier techniques are employed. The results of the competing methods are compared, and variables that might determine the differences in efficiency are identified. Special attention is...

European cattle markets have recently undergone significant change. We explore the simultaneous impacts of agricultural policy reform and the occurrence of an animal health crisis on spatial interdependencies of calf prices of four major European Union markets. The markets are found to be...

The aim of this article is to analyse the price transmission between German and Hungarian wheat producer prices using weekly prices. Markov-Switching Vector Error Correction Model (MS-VECM) with three regimes seems to appropriately capture the dynamics in the price relationship.