SORU: aşağıdaki parçaya göre cevaplayınız
According to the passage, the primary challenge of measuring domestic tourism is that ----.
Relatively few people enjoy the opportunity to travel to
other countries. By far the most common form of travel
is that by residents of a country within that country.
International travel, although given high priority by
segments of the populations of industrialized nations,
is still a minority activity. As a very rough guide, we
estimate that expenditure worldwide on domestic
tourism may be worth up to ten times that amount on
international tourism. Ironically, there are relatively
few countries that collect domestic travel and tourism
statistics, while much more information is available on
international tourism. Why is this? First of all,
international travel involves, by definition, the crossing
of a frontier. It is therefore easier to observe and
monitor. Domestic tourism involves movement internally
and is therefore more difficult to research. Countries
that only make use of registration forms at hotels miss
out on all aspects of domestic tourism that involve
staying in other accommodation establishments or with
friends or relatives. A number of countries do not even
try to measure domestic tourism due to its very nature.
For example, in many developing countries, very little
domestic movement involves staying in paid
accommodation, and so it does not compete with
demand from international visitors.