When should shareholders afford a manager the discretion to be opportunistic and when should they constrain him to be principled? We show that discretion is associated with lower powered incentives than is constraint: opportunism may put shareholder capital at risk; shareholder can lessen that...

The public and private sector costs of capital differ in the presence of taxes, because taxes are a cost to the private but not the public sector. We use a quasi-arbitrage approach to show how to include taxes in a comparison of capital costs. We find that taxes induce distortions that generate...