Which factor does NOT influence travel trends?

Travel agency promotions primarily serve as marketing tools that can encourage individuals to travel, but they do not fundamentally influence the broader trends in travel behavior. Trends in travel are typically shaped by larger, systemic factors such as economic conditions, which affect disposable income and consumer confidence; technological advances, which can alter how people plan and book their travel; and climate change, which significantly impacts travel patterns, destinations, and experiences due to environmental considerations.

In contrast, while travel agency promotions can create temporary spikes in interest or bookings for specific destinations or packages, they function more as responses to existing trends rather than driving the fundamental shifts or patterns in travel behavior over time. Therefore, this choice reflects how promotions may not have the same long-term influence as the other factors listed.