An Examination of Income Effect on Consumers' Ethical Evaluation of Counterfeit Drugs Buying Behaviour: A Cross-Sectional Study in Qatar and Sudan.

Introduction: There are limited studies on consumer behaviour toward counterfeit products and the determining factors that motivate willingness to purchase counterfeit items.

Aim: This study aimed to fill this literature gap through studying differences in individual ethical evaluations of counterfeit drug purchase and whether that ethical evaluation affected by difference in income. It is hypothesized that individuals with lower/higher income make a more/less permissive evaluation of ethical responsibility regarding counterfeit drug purchase.