The war in Ukraine, agricultural trade and risks to global food security

T Glauben, M Svanidze, L Götz, S Prehn… - Intereconomics, 2022 - Springer
… Thomas Glauben, Miranda Svanidze, Linde Götz, Sören Prehn, Tinoush Jamali Jaghdani,
Ivan Đurić and Lena Kuhn … Sören Prehn, Leibniz Institute of Agricultural Development in …

[PDF][PDF] Is financial speculation with agricultural commodities harmful or helpful? A literature review of empirical research

MG Will, S Prehn, I Pies, T Glauben - J. Altern. Invest, 2015 - researchgate.net
In recent years, the futures markets for agricultural commodities have seen the emergence
of commodity index traders (CITs)(Irwin and Sanders [2012a]). These index funds seem to …

Residual demand measures of market power of Russian wheat exporters

…, O Perekhozhuk, T Glauben, S Prehn… - Agricultural …, 2014 - Wiley Online Library
Traditionally, the international wheat market has been considered a good example of a market
with perfect competition. Yet, several articles provide evidence of imperfect competition …

[BOOK][B] The war in Ukraine exposes supply tensions on global agricultural markets: Openness to global trade is needed to cope with the crisis

T Glauben, M Svanidze, LJ Götz, S Prehn, TJ Jaghdani… - 2022 - econstor.eu
The war in Ukraine has aggravated existing tensions on the agricultural commodities market.
Since late 2021, prices for commodities such as grains and vegetable oils have reached …

Gravity model estimation: fixed effects vs. random intercept Poisson pseudo-maximum likelihood

S Prehn, B Brümmer, T Glauben - Applied Economics Letters, 2016 - Taylor & Francis
The standard Anderson and van Wincoop gravity model has typically been estimated using
a fixed-effects approach. However, a fixed-effects approach has a major drawback: it does …

[BOOK][B] Is financial speculation with agricultural commodities harmful or helpful? A literature review of current empirical research

MG Will, S Prehn, I Pies, T Glauben - 2012 - econstor.eu
This literature survey comprises 35 empirical studies published between 2010 and 2012 that
analyze the influence of financial speculation on the markets for agricultural commodities. …

Schadet oder nützt die Finanzspekulation mit Agrarrohstoffen?—Ein Literaturüberblick zum aktuellen Stand der empirischen Forschung

MG Will, S Prehn, I Pies, T Glauben - List Forum für Wirtschafts-und …, 2013 - Springer
This literature survey comprises 35 empirical studies, published between 2010 and 2012,
which analyze the influence of financial speculation on the markets for agricultural …

The ethics of financial speculation in futures markets

I Pies, MG Will, T Glauben, S Prehn - The world scientific handbook …, 2016 - World Scientific
This article sketches an ethics of (financial) speculation in futures markets. (1) It identifies an
intentionalistic fallacy prevalent in moral criticisms of speculation in general and of financial …

Preference erosion–the case of everything but arms and sugar

T Kopp, S Prehn, B Brümmer - The World Economy, 2016 - Wiley Online Library
While the European Union's Everything But Arms (EBA) agreement has granted unlimited
preferential access to the European market for the least developed countries (LDCs) since …

Structural gravity estimation & agriculture

S Prehn, B Brümmer, T Glauben - 2012 - econstor.eu
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 …