Table 2. Model variables description... | Emerald Publishing

Table 2.

Model variables description

Variable name	Variable description
RATING (continuous)	TripAdvisor’s rating − Weighted score calculated from TripAdvisor’s online customer ratings, reflecting customer satisfaction based on past dining experiences
REVIEW (continuous)	TripAdvisor number of reviews − The natural logarithm of the total number of customer reviews on TripAdvisor, indicating customer engagement and restaurant popularity
TOP10 (Dummy)	Inclusion in TripAdvisor’s top ten − Dummy variable indicating online visibility, with a value of 1 if the restaurant appears in TripAdvisor’s Top 10 for its specific area and 0 otherwise. This serves as a proxy for the restaurant’s trendiness at the time of data collection, reflecting its status among the most popular establishments
MENU and MENU2 (euros)	Food menu price - Average price of degustation and fixed-price gourmet menus, collected from restaurant websites, measured in euros. MENU2 is the squared value of the MENU variable, capturing non-linear effects of food menu pricing
REGION (categorical)	Administrative region − Categorical variable with 20 categories, each representing an Italian administrative region where the restaurant is located
STAR (categorical)	Michelin star rating − Categorical variable with four levels (0, 1, 2, 3) representing the number of Michelin stars awarded to the restaurant at the time of data collection, indicating quality and dining experience
PRICE_RANGE (categorical)	Price range − Categorical variable with four levels (€, €€, €€€, €€€€) denoting increasing price ranges, as indicated on the Michelin website, from € “on a budget” to €€€€ “spare no expense”
WINE_PRICE and WINE_PRICE2 (euros)	Wine price − Median value of all wines listed on each restaurant’s wine list, providing a measure of central tendency that minimises the influence of outliers. WINE_PRICE2 is the squared value of WINE_PRICE, capturing potential non-linear effects of wine pricing
REG_WINE (continuous)	Regional wines − Natural logarithm of the number of wines from the same region as the restaurant, indicating both the size and regional focus of the wine list
TYPOLOGY (continuous)	Wine typology diversity − Shannon Index (Shannon and Weaver, 1949) applied to the typology of wines (Sparkling, Red, White, Rosé and Dessert) within the wine list, providing a measure of wine variety
WINES (dummy)	Wines – Dummy variables indicating the presence of wines in a wine list (Argentina, Australia, Austria, Chile, Croatia, France, Georgia, Germany, Greece, Hungary, Israel, Lebanon, New Zealand, Portugal, Slovenia, Spain, South Africa, Switzerland, UK and USA)

Variable name	Variable description
RATING (continuous)	TripAdvisor’s rating − Weighted score calculated from TripAdvisor’s online customer ratings, reflecting customer satisfaction based on past dining experiences
REVIEW (continuous)	TripAdvisor number of reviews − The natural logarithm of the total number of customer reviews on TripAdvisor, indicating customer engagement and restaurant popularity
TOP10 (Dummy)	Inclusion in TripAdvisor’s top ten − Dummy variable indicating online visibility, with a value of 1 if the restaurant appears in TripAdvisor’s Top 10 for its specific area and 0 otherwise. This serves as a proxy for the restaurant’s trendiness at the time of data collection, reflecting its status among the most popular establishments
MENU and MENU2 (euros)	Food menu price - Average price of degustation and fixed-price gourmet menus, collected from restaurant websites, measured in euros. MENU2 is the squared value of the MENU variable, capturing non-linear effects of food menu pricing
REGION (categorical)	Administrative region − Categorical variable with 20 categories, each representing an Italian administrative region where the restaurant is located
STAR (categorical)	Michelin star rating − Categorical variable with four levels (0, 1, 2, 3) representing the number of Michelin stars awarded to the restaurant at the time of data collection, indicating quality and dining experience
PRICE_RANGE (categorical)	Price range − Categorical variable with four levels (€, €€, €€€, €€€€) denoting increasing price ranges, as indicated on the Michelin website, from € “on a budget” to €€€€ “spare no expense”
WINE_PRICE and WINE_PRICE2 (euros)	Wine price − Median value of all wines listed on each restaurant’s wine list, providing a measure of central tendency that minimises the influence of outliers. WINE_PRICE2 is the squared value of WINE_PRICE, capturing potential non-linear effects of wine pricing
REG_WINE (continuous)	Regional wines − Natural logarithm of the number of wines from the same region as the restaurant, indicating both the size and regional focus of the wine list
TYPOLOGY (continuous)	Wine typology diversity − Shannon Index (Shannon and Weaver, 1949) applied to the typology of wines (Sparkling, Red, White, Rosé and Dessert) within the wine list, providing a measure of wine variety
WINES (dummy)	Wines – Dummy variables indicating the presence of wines in a wine list (Argentina, Australia, Austria, Chile, Croatia, France, Georgia, Germany, Greece, Hungary, Israel, Lebanon, New Zealand, Portugal, Slovenia, Spain, South Africa, Switzerland, UK and USA)