“…The applications of AIDS models in international tourism studies can be broadly grouped into two types of demand analyses: (a) tourists' expenditure allocation among a number of selected international destinations (e.g., De Mello et al, 2002, Han et al, 2006, Papatheodorou, 1999; (b) tourists' budget allocation among different product categories such as accommodation, food and drinks, and shopping in an outbound destination (e.g., Fujii, Khaled, & Mak, 1985, Wu et al, 2011. The substitution or complementary relationships among different outbound destinations and among different tourism product categories can be investigated through the calculated cross-price elasticities.…”