This volume contains a selection of recent theoretical studies, deriving from presentations at the 16th International Morphology Meeting (Budapest, 2014), on the organization of morphological paradigms, paradigm complexity, and the inflectional marking of morphosyntactic relations, as well as on the application of information theory to the analysis of morphological systems aiming to achieve a clearer understanding of the close relation between notions of ‘morphological information’ based on ‘uncertainty’ and ‘uncertainty reduction’ and the error-driven structure of discriminative learning models.