Economists use partial and general equilibrium trade simulation models to estimate the impact of changes in domestic policies and international trade rules. During the WTO Doha Development Agenda (DDA) negotiations economists have produced many different estimates of the gains that would result...

Applied general and partial equilibrium models are widely used tools for ex ante analysis of trade policy changes. However, simulation results seem to exhibit significant variation across publications, and the often criticised 'black box' character of applied trade models makes meaningful...

Recent empirical studies argue that the implementation of quality standards among agricultural exporters has the character of a fixed cost. However, this can be misleading if fixed costs are only understood in terms of required investments. Instead, we argue that standard adoption is the result...

Economists use partial and general equilibrium trade simulation models to estimate the impact of changes in domestic policies and international trade rules. During the WTO Doha Development Agenda (DDA) negotiations economists have produced many different estimates of the gains that would result...

Applied general and partial equilibrium models are widely used tools for ex ante analysis of trade policy changes. However, simulation results seem to exhibit significant variation across publications, and the often criticised ‘black box’ character of applied trade models makes meaningful...

We perform a meta-analysis of 110 studies that report simulated global welfare gains from trade liberalization under the WTO Doha Development Agenda (DDA) to test for hidden, author-specific model specification effects. We find that after controlling for other factors that influence simulation...