If n colluding oligopolists all have the cost function C(q_i) = c * q_i, then it will not be possible to uniquely allocate among the firms the monopoly output that maximizes their joint profit. Similarly, if all plants of an n-plant firm have the cost function C(q_i) = c * q_i, then it will not...

Data Envelopment Analysis (DEA) is a linear programming based method for evaluating performance of comparable production units such as firms. Although the method is already extensively applied in many areas of economics, its use in environmental economics and related fields remains limited. The...

This paper presents some stylised facts about the book-tax gap, i.e. the difference between book and taxable income, of Italian corporations. This divergence is a reflection of the usage of any tax shields and any applicable credits and rebates which, in turn, implies that the concept of taxable...