Stochastic and evolutionary models in linguistic typology and in linguistic theory: general properties of cross-linguistic distributions; methodological foundations of statistically oriented empirical typology; stochastic models of constraint interaction and their relation (e.g. Stochastic OT); relations between theoretical stochastic models and statistical properties of cross-linguistic distributions.
Typology of reciprocals and their relations with neighboring categories (comitative, collective, reflexive); typology of alignment of case marking; typology of information-structure phenomena; interactions between topic/focus marking and case marking.