This paper examines the impact of electronic trading systems on the bid-ask spreads in the foreign exchange market. The paper finds: First, both the Reuters system and EBS reduce spreads significantly; Second, the EBS is more influential than the Reuters system for the currency pair DEM/USD;...

This paper examines the forward premium puzzle based on 1-week forward rates across weekdays. The paper finds that Thursday consistently appears to be a special day on which the puzzle disappears, while it is present on other weekdays. In addition to Thursday, Monday is also found to be a...

We provide an approach to optimize a block surgical schedule (BSS) that adheres to the block scheduling policy, using a new type of newsvendor-based model. We assume that strategic decisions assign a specialty to each Operating Room (OR) day and deal with BSS decisions that assign...