1 Leading: Leading economic indicators are indicators which change before the economy changes. 2  Stock market returns are a leading indicator, as the stock market usually begins to decline before the economy declines and they improve before the economy begins to pull out of a recession.
Main Image: A connecting flight is a flight that you opt for when you have an intermediate stop and change of aircraft. You take a connecting flight when you have to make atleast one stop between your originating airport and your destination. Sometimes a connecting flight makes you to change airline companies.
As a general rule, if you're buying a connected ticket from an airline, they're going to first and foremost sell you the other airline's ticket based on being joint members of an alliance. The three biggest alliances are OneWorld, Star Alliance, and SkyTeam.