Mega corporate travel agency air transactions processed through ARC in October fell by about 0.5 percent year over year,

following two months of growth. Including American Express, BCD Travel, Carlson Wagonlit Travel, HRG and Omega World Travel, the mega agency category for the first time in 2011 underperformed versus another ARC agency category. Agencies covered by the "other" category collectively increased October transactions by about 2 percent, according to ARC data. The "online" category, which has lagged the others all year, experienced a year-over-year transaction decline of about 6 percent.