A resource to consider purchasing/acquiring for discovering what the growth markets are in various countries around the world are the Euromonitor market research reports.
Here is additional information about these reports:
Market research for the travel and tourism industry
Euromonitor has the world’s most comprehensive research on the travel and tourism industry. We monitor and analyse industry trends in travel and tourism globally, including in-depth data on market share and market size – from the “big picture” down to specific category levels.