The relation between information and cost is of a totally different nature; if the information of a unit is affected either because of some increase or decrease in the number of units with which it is in competition, or because of some change in its frequency, we may expect that speakers will be tempted to let the output of energy in their production of that unit be partially determined by its new informational role. In other words, people will be ready to pay more for more information to be conveyed and inclined to pay less if information decreases.
- Martinet (1962), a pag.143