This paper presents arguments that challenge what I call the fact/value separability thesis: the idea, roughly, that factual judgements can be made independently of judgements of value. I will look at arguments to the effect that facts and values are entangled in the following areas of the scientific process in economics: theory development, economic concept formation, economic modelling, hypothesis testing, and hypothesis acceptance.

In Searle’s social ontology, collective intentionality is an essential component of all institutional facts. This is because the latter involve the assignment of functions, namely "status functions," on entities whose physical features do not guarantee their performance, therefore requiring our acceptance that it be performed. One counter-example to that claim can be found in Carl Menger’s individualistic account of the money system. Menger’s commitment to the self-interest assumption, however, prevents him from accounting for the deontic dimensions of institutional facts.