The 2013 Great Wine Capitals Global Network market survey analyzes wine tourism performance across several capitals, highlighting a 47% increase in survey responses from 2012. Key sources of wine tourism revenue vary by location, with high-end wines dominating profits in Mendoza and Christchurch, while lodging is crucial in Mainz-Rheinhessen. The survey also identifies factors influencing tourist visits and spending, such as the importance of gastronomy and effective marketing through wineries' own websites.