and this is a problem when estimating log-linear gravity equations. This has caused many researchers to either ignore the zero trade flows or to replace the zero with a small positive number. Both of these actions bias the resulting parameter estimates of the gravity equation. In this study we...

This document provides an index and a guide to the activities of the North American Agrifood Market Integration Consortium (NAAMIC) and its predecessor organization the Policy Disputes Information Consortium (PDIC). The first meeting of the group took place in Rio Rico, Arizona in March 1995 and...

This study develops an import demand model to explore the role of income in explaining the trade performance of low, middle and high-income countries with a special emphasis on Brazil, Russia, India and China – the BRIC economies. The study estimates the impact of the growth in per capita...

When high prices or natural calamities result in starvation and political unrest in the developing world emergency food aid is the best short run response. However, over a longer time frame it is important to have in place international rules that allow the market to function to help alleviate...

When analyzing bilateral trade flow data, zero trade flows are quite common and problematic when a gravity equation is estimated with a log-linear functional form. This has caused many researchers to either ignore the zero trade flows or to replace zero with a small positive number. Both of...

Contributed Paper prepared for presentation at the International Association of Agricultural Economists Conference, Beijing, China, August 16-22, 2009

Contributed Paper prepared for presentation at the International Association of Agricultural Economists Conference, Beijing, China, August 16-22, 2009