A generalization of J. A. Mirrlees's (1971) income taxation model is formulated in which qualifications of workers are both endogenous and observable by the government. Individuals differ by their unobservable abilities, which simultaneously affect their disutility of labor and their cost of...

The paper offers a roadmap to the current economic thinking concerning interchange fees. After describing the fundamental externalities inherent in payment systems and analysing merchant resistance to interchange fee increases and the associations' determination of this fee, it derives the...

We analyse the demand for hedging and insurance by a firm that faces liquidity risk. The firm's optimal liquidity management policy consists of accumulating reserves up to a threshold and distributing dividends to its shareholders whenever its reserves exceed this threshold. We study how this...

The classical doctrine of the Lender of Last Resort, elaborated by Thornton (1802) and Bagehot (1873), asserts that the Central Bank should lend to ‘illiquid but solvent’ banks under certain conditions. Several authors have argued that this view is now obsolete: when interbank markets are...

We model systemic risk in an interbank market. Banks face liquidity needs as consumers are uncertain about where they need to consume. Interbank credit lines allow banks to cope with these liquidity shocks while reducing the cost of maintaining reserves. However, the interbank market exposes the...