Seit einiger Zeit gibt es eine sehr intensive Diskussion über die Wirkungen von Spekulationen mit Rohstoffen, insbesondere Agrarrohstoffen. Der vorliegende Aufsatz untersucht dies auf der Basis des aktuellen Forschungsstands. Zahlreiche Studien zeigen, dass sich mit Hilfe der Ökonometrie weder...

Supposed portfolio benefits of commodities and the increased availability of commodity linked investment products such as index funds contribute to a financialization of agricultural commodity markets. The parallel increase in price levels and short-term volatility for almost all major...

Es wird wissenschaftlich kontrovers diskutiert, ob kausal schlüssige und empirisch robuste Befunde für die Beeinflussung der "realen" Lebensmittelpreise durch Spekulanten vorliegen. Die korrelative Koinzidenz von ansteigender Terminmarktspekulation und einem steigenden Preisniveau lässt auf...

Der Handel mit Optionen gewinnt auf volatileren Agrarmärkten zunehmend an Bedeutung. Nun stellt sich die Frage, ob der Optionshandel ein sinnvolles Instrument zur Risikoabsicherung von Landwirten und Landhändlern darstellt oder ob er vielmehr ein Treiber der Agrarpreisvolatilität ist. Die...

This paper addresses to what extent governments have traded off price distortions for reduced volatility in intervening in agricultural and food markets during the recent food price spikes. We develop a model to derive how much distortions a government would introduce when it cares about...

Auf volatileren Agrarmärkten gewinnt der Handel mit Optionen zunehmend an Bedeutung. Optionen gestatten die einseitige Absicherung von Preisrisiken, z. B. nur gegen fallende Preise, und stellen ein zunehmend bedeutenderes Instrument für das Risikomanagement von Landwirten und Landhändlern...

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,...

Options trading is increasingly important in more volatile agricultural markets. Options allow for unilateral hedging of price risks, e. g. against falling prices only, and are an indispensable risk management instrument for farmers and grain dealers. Concerns that soaring options trading could...

"Modern" agricultural markets are characterized by, among other things, quality requirements and vertical coordination. The nature of the industrial organization of the value chain depends on a variety of factors, such as local institutions, economic growth, demand, institutional infrastructure...

In this paper we aim to assess the mechanics of the global food price increases experienced in the recent years, most profoundly during the 2007-2008 food price spikes. At this stage, we aim to test, whether there is an empirically assessable relationship between World agricultural commodity...

There now exists a large literature on price transmission in agro-food sectors. However, a great majority of empirical studies focus on the existence of asymmetry and, by and large, do not allow investigating the reason for its presence or absence. This is in sharp contrast to the theoretical...

In der Studie wurden die Auswirkungen der rasanten, regional sehr unterschiedlichen Ausdehnung der Biogaserzeugung und des dafür erforderlichen Energiepflanzenanbaus auf die innersektoralen Wechselwirkungen, die Boden- und Pachtmärkte sowie auf die Ernährungs- und Futtermittelindustrie...

U.S. retail food price increases in recent years may seem large in nominal terms, but after adjusting for inflation have been quite modest even after the change in U.S. biofuel policies in 2006. In contrast, increases in the real prices of corn, soybeans, wheat and rice received by U.S. farmers...

Earlier research showed that during the 1980s and 1990s most of the global agricultural trade expansion took place among the industrial countries and among countries within trade blocs. These were also periods of declining agricultural prices. These prices increased during the 2000s, there were...

There now exists a large literature on price transmission in agro-food sectors. However, a great majority of empirical studies focus on the existence of asymmetry and, by and large, do not allow investigating the reason for its presence or absence. This is in sharp contrast to the theoretical...

In this paper we aim to assess the mechanics of the global food price increases experienced in the recent years, most profoundly during the 2007-2008 food price spikes. At this stage, we aim to test, whether there is an empirically assessable relationship between World agricultural commodity...

Earlier research showed that during the 1980s and 1990s most of the global agricultural trade expansion took place among the industrial countries and among countries within trade blocs. These were also periods of declining agricultural prices. These prices increased during the 2000s, there were...

The political economy of food price policy: an overview / Per Pinstrup-Andersen -- International to domestic price transmission in fourteen developing countries during the 2007-8 food crisis / Kenneth Baltzer -- A cacophony of policy responses: evidence from fourteen countries during the 2007-8...

Food inflation in the EU : contrasting experience and recent insights / Tim Lloyd, Steve McCorriston, and Wyn Morgan -- Overview of price transmission and reasons for different adjustment patterns across EU member states / Islam Hassouneh ... [et al.] -- Price transmission in food chains : the...

Die Broschüre gibt einen Überblick über die Entwicklung der Betriebsgrößen und -flächen, über die Anbauverhältnisse, die Ernteerträge sowie die Tierhaltung in Nordrhein-Westfalen. Angaben zu Arbeitskräften, zur Milchproduktion und zu Schlachtungen runden das Zahlenmaterial ab.