Tourism Uncertainty Indexes

Download Data                 Annotated Tourism Uncertainty Index

We are pleased to host the Tourism Uncertainty Index (TUI), created by Ongan et al. (2026) in their article titled "Measuring Tourism Uncertainty", introducing a first tourism-specific uncertainty indicator and published in the SSCI-indexed journal Sustainable Development.

The authors construct monthly TUI for 43 countries from 2002 using a Context Window (CW) methodology based on large-scale textual analysis of country-level reports and international information sources. First, tourism-related and uncertainty-related keywords are identified from the textual datasets. Second, the CW methodology is applied to detect the co-occurrence of tourism and uncertainty terms within a predefined textual window to capture tourism-related uncertainty dynamics. The country-level indices are then aggregated into quarterly and annual frequencies. Finally, the authors compute Global TUI indices in two forms as Global-equal-weighted and Global-GDP-weighted means of country-level TUI indices. The values are scaled (normalized) to ensure consistency and comparability across countries and over time.

For the article and TUI series (indices) developed by the authors, please use the following citation: Ongan, S., Gocer, I., Işık, C., & Dogru, T. (2026). Measuring Tourism Uncertainty (TUI). Sustainable Development. https://doi.org/10.1002/SD.71156