• | ATRS (ATRG): Vancouver (1997), Dublin (1998), Hong Kong (1999), Amsterdam (2000), Jeju Island (2001), Seattle (2002), Toulouse (2003), Istanbul (2004), Rio de Janeiro (2005), Nagoya (2006), Berkeley (2007), Athens (2008), Abu Dhabi (2009), Porto (2010). |
• | ASCE: Austin (1998). |
• | ERSA: Vienna (1998), Dublin (1999), Barcelona (2000), Zagreb (2001), Amsterdam (2005). |
• | EURO: Budapest (2000). |
• | NARSC: Montreal (1999), Chicago (2000), San Juan (2002), Philadelphia (2003), Las Vegas (2005) |
• | WCTR: Antwerp (1998), Seoul (2001), Istanbul (2004), Berkeley (2007). |
• | World conference of the Regional Science Association International: Port Elizabeth (2004). |
• | Center of Transportation Studies, Boston University (2002). |
• | Aviation seminar, Lund University (2002). |
• | Helsinki conference on antitrust issues: Helsinki (2001). |
• | Workshop in advances in aviation economics: Amsterdam (2001). |
• | Hamburg aviation conference: Hamburg (2000, 2004). |
• | CAA seminar on benchmarking: London (2000). |
• | GARS (German aviation research society): Bremen (2003), Vienna (2006). |
• | AEA: Boston (2000, discussant), Philadelphia (2005). |