Benz, M., &Frey, B. S. (2008). Being independent is a great thing: Subjective evaluations of self‐employment and hierarchy. Economica, 75(298), 362-383.

One can be independent, or one can be subject to decisions made by others. This paper argues that this difference, embodied in the institutional distinction between the decision‐making procedures ‘market’ and ‘hierarchy’, affects individual wellbeing beyond outcomes. Taking self‐employment as an important case of independence, it is shown that the self‐employed derive higher satisfaction from work than those employed in organizations, irrespective of income gained or hours worked. This is evidence for procedural utility: people value not only outcomes, but also the processes leading to outcomes.

https://doi.org/10.1111/j.1468-0335.2007.00594.x