a wild organism with a certain quality at a point in time then it will never use this same organism at a subsequent … point in time. Second, we show that if our PF uses a particular organism with its quality at a point in time then it will co … ntinue to produce the drug with the chemicals from this organism at all later points in time. Third, we show that there is a …

generally distributed lead time we derive expressions for the service levels for each demand class and the average total cost … per unit time. Efficient solution methods for obtaining optimal policies, with and withoutservice level constraints, are …

wide variety of time-scales. Given that traffic streams are indeed endowed withLRD properties, a next question is: what is …

simulation is too time-consuming, and we have to use fastsimulation techniques instead. Due to the exponential decay (in n …

use an analytical framework in which wage differentials result from two types of uncertainty. Quantity uncertainty … originates from imperfect foresight in future product demand. I argue that workers who take over part of the quantity uncertainty … from the employer get higher payments. Quality uncertainty on the other hand originates from the fact that employers are ex …

This paper analyses the effect of uncertainty on investment spending. We analyse twotypes of investment, i.e. aggregate … investment and investment in energy saving technologies,using subjective evaluations of expectations and uncertainty of Dutch … general investment spending. Furthermore, expectationsand uncertainty have important although different effects on investment …

data from a representative Dutch household panel to study the impact of uncertainty regarding one's savings adequacy on … economics that provide opposing predictions regarding the impact of uncertainty on retirement savings contributions. Our results … indicate that the effect of uncertainty is moderated by two factors: an individual's perceived adequacy of current savings and …

of uncertainty on travel times and the implications this has forestimations of travel time values has received much less … thatignoring uncertainty issues may easily lead to distorted estimates of values of travel time. Thisis of special relevance in …The value of travel time plays an important role in cost benefit analysis of infrastructureprojects. However, the issue …

manager’s long run expected cost (LREC) of orchard management per unit time. Finally, we show that when confronted with a …