Pragmatics has hitherto been mainly a philosophical and a
linguistic enterprise. Speec11 acts are accounted for in relatively
abstract action theoretical terms. The actual production, comprehension
and effects of speech acts in communication, however, should
also be studied in a more empirical perspective. Cognitive models
should be elaborated to account for planning, comprehension and
memory of speech acts. Similarly, a great number of social psychological
factors which determine the success of speech acts in 'real'
situations require our attention. That is, besides illocution, we now
also should pay attention to perlocution, and to the conditions
which make hearers actually accept a specific speech act.