This article follows the wake of the author's previous articles regarding framework (typology) and study languages (Slavic, Romance and Basque), although on this occasion, the subject of relative clauses gives way to one of equal fascination: causativity.The article is divided into two parts: in the first, some of the theoretical problems posed up to now are summarized (Bresnan 1982; Zubizarreta 1985; Baker 1988; Alsina 1992; Guasti 1998; López 2001). In the second part, starting from the morphological typology of causativity offered by Nedialkov and Silnitskii (1973) and collected by Moreno Cabrera (1991), the author establishes a list of similarities and differences among the languages analyzed regarding causativity. The most important si...