The influence of the simplicity/informativeness trade-off on the sematic typology of quantifiers Wouter Posdijk Abstract: Previous research has shown that a trade-off between simplicity and informativeness can explain the semantic typology of various semantic domains of content words, such as color, kinship and folk biology (Kemp, Xu & Regier, 2018). In this thesis, I investigate whether this trade-off extends to quantifiers, a domain of function words with a well-established semantic typology. In particular, I develop measures of simplicity (based on logical description length) and informativeness (based on communicative use) of individual quantifiers and quantifier languages and I investigate the relation between properties of natural languages, such as monotonicity, to optimality with respect to the trade-off. Results show that languages of natural quantifiers perform better than random languages, and that monotonicity correlates with how optimal a language is.