Various plants and resources such as orchards are vulnerable to the detrimental effects of successful invasions by alien animal or plant species. To outline an appropriate policy response, we first use renewal theory to construct a stochastic model of optimal orchard management in the presence...

There is an increasing demand for transport decisions to be made in thelight of some form of what may generically be called cost benefit analysis(CBA). The actual techniques may vary and often deviate quite significantlyfrom the conventional economic concept of CBA but in all cases theprocedures...

In the paper a nested logit model is used to describe passenger preferencesconcerning airports and airlines. A statistical model for the passengers'sequential choice of airport and airline is calibrated. It appears that thechoice sequence first airport, then airline is statistically preferable...