摘要 : According to a classical result, a move from uniform pricing to third-degree price discrimination only improves welfare if total output increases. In this paper I show that the classical result fails in the presence of subsidies. ... 展开 According to a classical result, a move from uniform pricing to third-degree price discrimination only improves welfare if total output increases. In this paper I show that the classical result fails in the presence of subsidies. This finding appears to be relevant for the pharmaceutical sector where a consumer pays a fraction of the actual drug price due to health insurance coverage. 收起