预算平衡下运用补贴、罚款与赔偿打击数字盗版

Despite utilizing technical prevention methods and enacting copyright protection legislation, digital piracy has remained a persistent problem. We examine policy remedies to digital piracy whereby the policymaker has to balance its budget between fines on detected pirates, subsidies for legal purchases, and restitution to the firm. In our model, users choose whether to subscribe, copy, or not use the good, a firm decides on subscription fee and quality, and a policymaker determines subsidies, fines, and restitution. We find that the firm’s subscription fee is always increasing in subsidies, fines, and restitution under a budget balance constraint. The impact of these policy instruments on the firm’s investment in quality depends on how user marginal utility is influenced by the quality of the good and how the policymaker redistributes fines back to society, if at all. Using two specific functional forms with additive and multiplicative utility, we explain how these factors come into play. With additive utility, fines increase the firm’s investment in quality. However, with multiplicative utility the firm’s investment in quality decreases with fines if fines are used alone or alongside subsidies. In contrast to prior research, findings of our general framework illustrate that imposing fines on detected pirates “can” be socially optimal when accounting for the policymaker’s budget balance. Our specific functional forms also serve as two instances where imposing fines is always welfare maximizing. Finally, we find that although the policymaker’s optimal intervention improves social welfare and mitigates digital piracy, it leads to a reduction in consumer surplus.