“…Previous research has revealed that institutions also may drive consumers to purchase from the informal market, explained by failures of the formal institutions (i.e., instability, uncertainty, various weaknesses, inefficiencies or resource misallocations) and by norms, values and beliefs describing the acceptability of such behaviour (i.e., informal institutions) [42,53]. As such, shortcomings of the formal economy may include speed, quality or lack of availability of the product on the formal market [19,21,45]. Meanwhile, the asymmetry between the formal and informal institutions on the demand-side of the informal economy is associated with tax morale [12,18,[20][21][22]28,29] or the level of horizontal trust [20].…”