Classification of currencies

1. Depending on degree of stability

1.1. soft

1.2. hard

2. Depending on its influence on world economy

2.1. weak

2.2. strong (reserve)

3. Depending on issuer's status

3.1. national

3.2. foreign

3.3. international

4. Depending on convertibility

4.1. freely convertible

4.2. partially convertible

4.3. inconvertible