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...

Most observers agree that the major areas where gains can be made in CETA are in the services sector and selected areas of manufacturing. It seems unlikely that CETA will be as all encompassing as the NAFTA with only a few agricultural products excluded from full tariff elimination. Still, it...

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...