Institutional improvement can be a very slow and uncertain process when institutional quality is weak. In the meantime, countries have launched far-reaching economic reforms whose success is predicated on a large investment response. However, the uncertainties attending institutional reform can raise perceptions of risk, thereby muting investment responses. Using new values of institutional quality for three Maghreb countries (Algeria, Morocco and Tunisia), which we derive from fuzzy-set based transformations on freedom indices, we show that moving from low institutional quality to a stage of ‘partial improvement’ may reduce income per capita, with financial and trade reforms having unintended negative effects.