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...

In 2011, the Canadian Agrifood Policy Institute released an report highlighting the importance of the agrifood sector to the economy and concluded by stating the need for Canada to double the dollar value of agrifood exports to ensure the viability of the system. This paper seeks to estimate...

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...