In this paper, two-stage and purely sequential estimation procedures are considered to construct fixed-width confidence intervals for the reliability parameter under the stress-strength model when the stress and strength are independent exponential random variables with different scale parameters. The exact distribution of the stopping rule under the purely sequential procedure is approximated ...

This paper reports on an experimental study of the relationship between job capacity, job concentration, and market power in the context of an agent-based computational model of a labor market. Job capacity is measured by the ratio of potential job openings to potential work offers, and job concentration is measured by the ratio of work suppliers to employers. For each experimental treatment, w...

the aim of this study was to investigate the factors affecting timely repayment of agricultural loans in fars province. the necessary data was obtained from agricultural bank as well as through 163 questionnaires, filled out in fars-province. the farmers were divided in to timely repayment and defaulter groups while standard tobit model being used for the study. the dependent variable in this m...

Project planning is part of project management, which is relates to the use of schedules such as Gantt charts to plan and subsequently report progress within the project environment. Initially, the project scope is defined and the appropriate methods for completing the project are determined. In this paper a new approach for the critical path analyzing a project network with random fuzzy activi...

In many applications it is necessary to use a simple and therefore highly misspecified econometric model as the basis for decision-making. We propose an approach to developing a possibly misspecified econometric model that will be used as the beliefs of an expected utility maximiser. An objective function that measures the value of predictive distributions in decision-making is introduced and u...

A crucial assumption underlying any game-theoretic analysis is that there is common knowledge that all the players are rational. Rationality here is understood in the decision-theoretic sense: The players’ choices are optimal according to some choice rule (such as maximizing subjective expected utility). Recent work in epistemic game theory has focused on developing sophisticated mathematical m...

This paper aims to propose a reliable location-allocation model where facilities are subject to the risk of disruptions. Since service facilities are expected to satisfy random and heavy demands, we model the congested situations in the system within a queuing framework which handles two sources of uncertainty associated with demand and service. To insure the service quality, a minimum limit re...

this paper examines regime shifts in tedpix return and volatility and the effects of positive and negative crude oil shocks and gold price fluctuations on stock market shifts behavior using markov switching egarch model with student’s t-distribution. we detect two episodes of series behavior, one relative to low mean/high variance regime namely bear state and the other to high mean/low variance...

because of the newness of information technology (it) and internet in the world, and because of intrinsic constraint of multimedia and traditional news systems such as: newspaper, bulletin, radio and television in interactive communication, diffusion of news and information in internet has possessed special situation. but it is possible sometimes that the use of internet doesn’t achieve anticip...