The issues of zero trade observations and the validity of the log linear transformation of the gravity equation have generated a number of debates in the literature with differing claims about the most suitable estimation technique. To produce unbiased and consistent estimates for policy making,...

Die ersten drei Artikel (Kapitel 3, 4 und 5) analysieren unter welchen Bedingungen positive oder negative Auswirkungen von Standards auf Handel überwiegen. Wir betrachten die folgenden Determinanten: Marktkonzentration, Produktkomplexität, Qualität öffentlicher Institutionen und die Art des...

With increasing global agrifood trade, private food standards and certifications have proliferated. Yet, their trade effects remain ambiguous. We provide further empirical evidence by assessing the effect of GlobalGAP certification on agrifood exports to high-value markets in EU and OECD...

Large chocolate manufacturers have committed themselves to only using certifiedcocoa beans and some governments want to increase the share of certified cocoaproducts consumed in their countries. Thus, Voluntary Sustainability Standards(VSSs) become quasi-mandatory for cocoa producers and...

French (2011) can analytically show that the standard Anderson and van Wincoop (2003) gravity trade model is only correctly specified for disaggregate data; gravity trade model analysis should be done at product level and then estimation results should be reaggregated. If however gravity trade...

The 2003 reforms of the Common Agricultural policy of the European Union introduced decoupled income transfers as the most prominent policy instrument. However, member states were given substantial discretion over the degree and timing of the reform implementation. As a result, different...