Tourism expenditures are determined by a set of antecedents that reflect tourists’ willingness and ability to spend, and de facto incremental monetary outlays at which willingness and ability is transformed into total expenditures. Based on the neoclassical theoretical argument of utility-constrained expenditure minimization, we extend the current literature by applying a sustainability-based segmentation criterion, namely, the Legatum Prosperity Index^TM to the decomposition of a total expenditure differential into tourists’ relative willingness to spend and an upper bound of third-degree price discrimination, using mean-level and conditional quantile estimates. Our results indicate that understanding the price–quantity composition of international inbound tourism expenditure differentials assists agents in the tourism industry in their quest for profit maximization.

旅游支出由一系列反映游客消费意愿和能力的前因，以及意愿和能力转化为总支出的实际增量货币支出决定。基于效用约束支出最小化的新古典理论论证，我们通过应用基于可持续性的细分标准来扩展当前文献，即 Legatum Prosperity Index ^TM使用平均水平和条件分位数估计，将总支出差异分解为游客的相对消费意愿和三级价格歧视的上限。我们的结果表明，了解国际入境旅游支出差异的价格-数量构成有助于旅游业的代理人寻求利润最大化。