Question

why tourism is known as invisible trade

Answer 1

Exchange of goods among people is called trade. ... Tourism is Invisible trade as tourists spend money at their destination thus buy services in hotels, restaurants, etc but their is no transfer of physical objects.

Answer 2

Tourism has become an important, even vital, source of income for many regions and even entire countries.

Tourism brings large amounts of income into a local economy in the form of payment for goods and services needed by tourists, accounting as of 2011 for 30% of the world's trade in services, and for 6% of overall exports of goods and services. It also generates opportunities for employment in the service sector of the economy associated with tourism.