See Tourism characteristic industry.

Tourism characteristic products are products which, in the absence of visitors, in most countries would probably cease to exist in meaningful quantity or for which the level of consumption would be significantly reduced and for which it seems possible to obtain statistical information.

Tourism Satellite Accounts defines a tourism characteristic industry as a group of establishments whose principal productive activity is a tourism characteristic activity. Tourism industries are the group of all tourism characteristic industries.

Tourism characteristic activities can be identified as those productive activities whose principal output is characteristic of tourism. As the set of these activities does not comprise a single industry conforming to 1993 System of National Accounts definition, the Tourism Satellite Accounts defines tourism industries as all establishments whose principal productive activity is a tourism characteristic activity. International Standard Industrial Classification (ISIC) Rev. 3 activities relevant to tourism listed in Annex II.B of Tourism Satellite Account: Recommended Methodological Framework comprise: Hotels and similar – ISIC 5510;
- Second home ownership (imputed) - part of ISIC 7010;
- Restaurants and similar – ISIC 5520;
- Railway passenger transport services – part of ISIC 6010;
- Cultural services – ISIC 9232, 9233;

- Road passenger Transport services - part of ISIC 6021 and 6022;
- Water passenger transport services - part of each of ISIC 6110 and 6120;
- Air passenger transport services - part of each of ISIC 6210 and 6220;
- Transport supporting services - part of ISIC 6303;
- Transport equipment rental - part of each of ISIC 7111, 7112 and 7113;
- Travel agencies and similar – ISIC 6304;
- Sporting and other recreational services – part of each of the following ISIC 9214, 9241, 9219, 9249

Tourism is defined as the activities of persons travelling to and staying in places outside their usual environment for not more than one consecutive year for leisure, business and other purposes not related to the exercise of an activity remunerated from within the place visited.

Tour operators are businesses that combine two or more travel services (e.g., transport, accommodation, meals, entertainment, sightseeing) and sell them through travel agencies or directly to final consumers as a single product (called a package tour) for a global price. The components of a package tour might be pre-established or can result from an “a la carte” procedure, in which the visitor decides the combination of services he/she wishes to acquire

The terms of repayment [of aid] may be the following: Equal principal payments (EPP) - denotes a fixed schedule of equal instalments of principal adding up to the face value of the loan. Interest is charged on outstanding principal and the amount of individual service payments decreases with each payment of principal. In the annuity method, each service payment is established as an equal amount, within which the interest component declines with time while the principal component increases. Lump sum means the loan is repaid in a single amount (principal and interest) at maturity. If interest is paid at various earlier dates, then the repayment schedule is a particular case of equal principal payments and is reported under that category.

The term tendency is used in business tendency surveys where the respondent is asked for a judgment on the direction of changes (e.g. up/down/same).

Indexes which measure differences in prices over time in a particular locality.

Factors used to adjust average prices obtained at the time of survey to annual average prices.