Two expected utility models are considered for a multi-period portfolio selection task of a special nature: the generalized logarithmic and negative exponential models. A weak version of the models is formulated in which the single parameter of each of the models is allowed to vary freely from one period to another in order to account for observed individual differences between subjects as well...

To examine the genetic variation for drought stress in chamomile, eight accessions belonging to four species were evaluated under both field and greenhouse conditions using normal and late season drought stress. In the field experiment drought stress were initiated with irrigation cease at the commencement of flowering time. In greenhouse experiment, irrigation carried out at flower initiation ...

In this paper, we adopt a decision theoretic view to Bayesian adaptive estimation. We extend the framework to situations where each observable variable is associated with a certain random cost of observation and consider the goal of maximizing the expected utility of a sequential experiment that ends when the total cost overruns a given budget. For example, the cost could be defined as the rand...

In this paper, a due date assignment scheduling problem with precedence constraints and controllable processing times in uncertain environment is investigated, in which the basic processing time of each job is assumed to be the symmetric trapezoidal fuzzy number, and the linear resource consumption function is used.The objective is to minimize the crisp possibilistic mean (or expected) value of...

melon ladybeetle, epilachna chrysomelina (f.) is one of the most injurious cucurbit attacking pests. sampling program and host preference of this ladybeetle were studied in ahvaz, southwest iran. suitable sample size, suitable location for sampling as well as suitable sampling life stage of the insect were obtained to be 12 on, lower leaf surface and egg stage of the ladybeetle, respectively. e...

Abstract. We design experiments to jointly elicit risk and time preferences for the adult Danish population. We find that joint elicitation results in estimates of discount rates that are dramatically lower than those found in previous studies. Estimation of latent time preferences requires that one specify a theoretical structure to understand risk and time choices, but we show that our main r...