The structure of telephone tariffs

This paper compares the structure of telephone tariffs adopted by three types of organisation: government-owned systems responsible for both posts and telephones, government-owned systems responsible for telephones alone, and privately-owned telephone systems. It is found that privately-owned systems are significantly more likely to adopt three or more peak-load pricing periods. They are also more likely to differentiate tariffs by category of subscriber, and to offer lower rates for shared lines, but these differences are only significant if private telephone systems are compared with government systems responsible for both posts and telephones. Postal responsibility alone has little or no effect on these aspects of tariffs. The paper thus provides limited support for the view that ownership systematically affects behaviour.