| Variable | Definition | Explanation |
| Dependent variables |
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| Y | Shopping expenditures | Shopping expenditures during their current trip (US$/per tourist per day). |
| Independent variables |
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| Travel-related factors |
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| GPT | Visitor’s travel model choice is group package tour | Dummy, 1 if visitor’s model choice is group package tour and 0 otherwise |
| Travel repeat | Travel repeat within three years | Dummy, 1 if visitor has travel repeat to Taiwan within three years and 0 otherwise |
| Traveling with family members or friends | Visitor’s traveling has family members or friends on the trip | Dummy, 1 if visitor has family members or friends on the trip and 0 otherwise |
| Tourist’s satisfaction | Visitor’s satisfaction scores | Visitor’s satisfaction scores on travel agents and tour guide services. Ranging 1 - 5 from strongly negative to strongly positive evaluation |
| Socio-demographic |
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| Central | Visitor’s residence is in the central area of China | Dummy, 1 if visitor’s residence is in the north area of China and 0 otherwise |
| South | Visitor’s residence is in the southern area of China | Dummy, 1 if visitor’s residence is in the southern area of China and 0 otherwise |
| Hong Kong and Macao | Visitor’s residence is in the Hong Kong or Macao | Dummy, 1 if visitor’s residence is in the Hong Kong or Macao and 0 otherwise |
| Male | Visitor is male | Dummy, 1 if visitor is male and 0 if visitor is female |
| Age 30 - 39 years | Visitor is age 30 - 39 years | Dummy, 1 if visitor is age 30 - 39 years and 0 otherwise |
| Age 40 - 59 years | Visitor is age 40 - 59 | Dummy, 1 if visitor is age 40 - 59 and 0 otherwise |
| Age Over 60 years | Visitor is over 60 years | Dummy, 1 if visitor is over 60 years and 0 otherwise |
| Income < US$29,999 | Visitor’s personal annual income level is lower than US$29,999 per year | Dummy, 1 if visitor’s personal annual income level is lower than US$29,999 per year and 0 otherwise |
| Income US$30,000 - 69,999 | Visitor’s personal annual income level is US$30,000 - 69,999 per year | Dummy, 1 if visitor’s personal annual income level is US$30,000 - 69,999 per year and 0 otherwise |
| Income US$70,000 - 99,999 | Visitor’s personal annual income level is US$70,000 - 99,999 per year | Dummy, 1 if visitor’s personal annual income level is US$70,000 - 99,999 per year and 0 otherwise |
| Secondary/High School | The visitor’s education level is secondary/high school | Dummy, 1 if visitor’s education level is high/vocational school and 0 otherwise |
| College or above | The visitor’s education level is college or above | Dummy, 1 if visitor’s education level is is college or above and 0 otherwise |
| Professional/Proprietor | Visitor’s occupation is professional or proprietor | Dummy, 1 if visitor’s occupation is professional or proprietor and 0 otherwise |
| Junior White Collar | Visitor’s occupation is junior white collar occupation | Dummy, 1 if visitor’s occupation is junior white collar and 0 otherwise |
| Blue Collar | Visitor’s occupation is blue collar | Dummy, 1 if visitor’s occupation is blue collar and 0 otherwise |