We present a stochastic version of the single-level, multi-product dynamic lotsizingproblem subject to a capacity constraint. A production schedule has tobe determined for random demand so that expected costs are minimized and aconstraint based on a new backlog-oriented Sigma-service-level...

This paper treats the problem of setting the inventory level of closed-loop owlines operating under the constant-work-in-process (CONWIP) protocol. We solve ahuge but simple linear program that models an entire simulation run of a closed-loopow line in discrete time to determine a production...

We present a detailed analysis of the patient and resource scheduling problemin rehabilitation hospitals. In practice, the predominantly therapeutical treatmentsand activities which are prescribed for the patients are typically scheduled manually.This leads to rigid and inefficient schedules...

This paper makes three contributions to our understanding of the price discovery process in currencymarkets. First, it provides evidence that this process cannot be the familiar one based on adverse selectionand customer spreads, since such spreads are inversely related to a trade’s likely...

Price comparison services are being used by more and more internet users worldwide tocompare prices of (online-)suppliers. The characteristics of price comparison services differinternationally. Not only are they different in the reference to their scope of work. Also with regard tothe technical...

We study the relationship between foreign exchange trading activity and volatility on theUSD/EUR foreign exchange market on the basis of a unique data set around the events of09/11/2001. We find that volatility and bid-ask spreads are by far larger at that time, but theshock is not persistent....

The rational prodigality argument, which often serves to justify social security,is considered in a second-best tax framework with endogenous labor supply. Rationalprodigality renders the familiar policies time inconsistent. We analyze time consistentpolicies and show that a wage tax suffices to...

We use a long panel data set for four entry cohorts into an internal labor market toanalyze the effect of age on the probability to participate in different training measures.We find that training participation probabilities are inverted u-shaped with age and thatlonger training measures are...

The use of technical analysis by financial market professionals is not well understood. Thispaper thus analyzes survey evidence from 692 fund managers in five countries, the vast majorityof whom rely on technical analysis. At a forecasting horizon of weeks, technical analysis isthe most...

We consider a recently proposed class of nonlinear time series models and focus mainly onmisspecification testing for models of such type. Following the modeling cycle for nonlineartime series models of specification, estimation and evaluation we first treat how to choosean adequate transition...