US–Canada border effect between 1993 and 2007: smaller, less asymmetrical, and declining

Disentangling the importance of international border effects. Some evidence from Portugal–Spain based on diesel retailers

“…This study framework is similar to the extensively studied case of the US and Canada (e.g. McCallum, 1995;Engel and Rogers, 1996;Yi, 2010;Feenstra, 2002;Anderson and Wincoop;2003;Ishise and Matsuo, 2015) in the sense that both countries are contiguous and there is no outstanding geographical barrier between them that could be confused with the border influence.…”