Consumer purchase of pirated software is a unique phenomenon. Unlike other products such as commodities and branded goods, pirated software purchase poses moral implications for the consumers. Ethical judgment arises because consumers, by purchasing pirated software from counterfeiters, indirectly deprive software developers of the benefits of their proprietary rights. The IRJ model of consumer ethical decision making integrates all past theories on ethical issues in a holistic framework that includes individuals' background and situational factors. The results of test of the model have identified certain components of moral intensity, perceived risks and moral judgment as relevant factors which influence consumer purchase decision. From a broader perspective, the model has theoretical and practical implications for the understanding and improvement of consumer buying behavior for morally stirring products, not just for software piracy alone.