This paper deals with optimal payment systems. The issue boils down to how large are the costs of different payment media, which can be interpreted as a question of the efficiency of the means of payment. However, there are other qualifications related to the choice of payment media. Here, at...

The current literature on irreversible investment decisions usually makes the assumption of a constant interest rate. We study the impact of interest rate and revenue variability on the decision to carry out an irreversible investment project. Given the generality of the valuation problem...