Recently gravity trade models are applied to disaggregated trade data. Here many zeros are characteristic. In the presence of excess zeros usual Poisson Pseudo Maximum Likelihood (PPML) is still consistent, the variance covariance matrix however is invalid. Correct economic interpretation...

Recently gravity trade models are applied to disaggregated trade data. Here many zeros arecharacteristic. In the presence of excess zeros usual Poisson Pseudo Maximum Likelihood(PPML) is still consistent, the variance covariance matrix however is invalid. Correcteconomic interpretation however...

In this paper the newly established rules for trading milk quotas in Germany are analyzed. These regulations have been in force since April 2000. Following a brief historical review of the quota system, the major changes in economic incentives regarding trading milk and the expected welfare...

This research contributes to the ongoing discussion on functional flexibility and theoretical consistency by comparing the empirical performance of two second order flexible functional forms - the Symmetric Generalized McFadden and the Transcendental Logarithmic. It proposes an estimation...

This poster discusses how different channels of speculation and affect food security in developing countries positively and negatively. As an overall assessment of the different trade-offs does not exist so far, we present a conceptual framework and some of its components to detect global price...

This paper analyzes co-movements and discusses possible market integration between aggregate food and stock markets in the period of 1990 to 2012. Correlations, price return distributions, cointegration, and Granger-causalities are tested in subsamples on monthly FAO Food Price Index and MSCI...

We use contemporaneous causality tests based on instrumental variables (IV) methods to re-examine causality from Commodity Index Trader positions to agricultural futures prices. A number of recent studies found that no Granger-causal impacts are discernible for agricultural commodity markets....

Im Lebensmitteleinzelhandel besitzt die Verkaufsförderung bereits alltäglichen Charakter. Jede Woche werden in Deutschland für eine breite Palette an Produkten verschiedene Verkaufsförderungsmaßnahmen, z. B. Sonderangebote oder Rabatte, eingesetzt. Allerdings fehlen präzise Angaben über...

Bezugsgenossenschaften weisen durch das Verhältnis zu ihren Eigentümern, welche gleichzeitig Kunden des Unternehmens sind, erhebliche Unterschiede zu anderen Unternehmenstypen auf. Eine Entlohnung der genossenschaftlichen Unternehmensleitung sollte diese Besonderheit berücksichtigen. Dieser...