دانلود رایگان مقاله انگلیسی انتخاب تصمیم گیرنده از سایت ISI

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عنوان فارسی مقاله:

انتخاب محل و نگرش مخاطره آمیز یک تصمیم گیرنده

عنوان انگلیسی مقاله:

Location choice and risk attitude of a decision maker

سال انتشار : 2017

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بخشی از مقاله انگلیسی:

2. The mean–variance objective

 Let G ¼ ðN; LÞ be an undirected network with a set of nodes N ðj j¼ N nÞ and a set of links L. Let x denote both the location of point x on link (a, b) and the distance between this point and the left end node a. The shortest distance between any two points x and y located somewhere in G is denoted by dðx; yÞ ¼ dðy; xÞ. To uniquely define a link ða; bÞAL, it is required that the index of the left end node a is smaller than that of the right end node b. We further require that the length of each link (a, b), denoted by lab, is equal to the shortest distance between nodes a and b. Given a set of p ðponÞ points Xp ¼ ðxð1Þ; xð2Þ; ; xðpÞÞ, let dðx;XpÞ ¼ min 1rjrp fdðx; xðjÞÞg. Demand is assumed to originate from the nodes of G only. The demand weight at node i, hi, is random with mean μi and standard deviation σi. Random variables hi and hk may be correlated with a correlation coefficient ρik. We study the median and center problems with random demand weights under the mean–variance objective (Eq. (1)), for which the random payoff Y will be, respectively, defined for either problem. In Section 5 we will show that the impact of λ on optimal locations also depends on the values of E(Y) and Var(Y). In the current study we attempt to develop general models and algorithms that are independent of λa0. The reader is referred to Jucker and Carlson [20] for a summary of four suggested methods to select λ. Example 1. To motivate our study, consider a 1-median problem with uncertain demand weights on a segment of z units long. For simplicity, we assume that the two random demand weights associated with the two end nodes 1 and 2 of the segment are independent. The deterministic 1-median problem is to locate a single facility so as to minimize the total weighted distance from demand to the facility. Let x be the location site of a single facility. When the demand weights are uncertain, the random payoff Y for the 1-median problem is formulated as YðxÞ¼h1dð1; xÞh2dð2; xÞ.

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کلمات کلیدی:

The Role of Attitude Toward Risk in Strictly Competitive Decision ... pubsonline.informs.org/doi/pdf/10.1287/mnsc.24.12.1231 by J Eliashberg - ‎1978 - ‎Cited by 16 - ‎Related articles The impact of decision makers' attitudes toward risk has been studied, extensively ... competitive decision—making situation on (a) their strategies and (b) their ... [PDF]risk attitudes - Assakkaf www.assakkaf.com/Courses/ENCE%20627/Lectures/CHAPTER13.pdf risk attitudes in decision making. ▫ In Chapter 13, basic concepts are presented, and you will learn how to model your own risk attitude. We will develop the ... Location choice and risk attitude of a decision maker https://ideas.repec.org/a/eee/jomega/v66y2017ipap170-181.html by O Berman - ‎2017 - ‎Related articles Downloadable (with restrictions)! In this paper we study the effect of a decision maker׳s risk attitude on the median and center problems, two well-known location ... [PDF]Risk attitude & Economics - Foncsi https://www.foncsi.org/fr/.../risk-attitude-and.../Viewpoint-risk-attitude-economics.pdf by L Concina - ‎2014 - ‎Cited by 1 - ‎Related articles risk, uncertainty, risk attitude, risk aversion, decision-making, behavioral ... that are determinant in decision-making under risk or uncertainty and in situations ... Decision Making Individual Differences Inventory - Risk Attitude www.sjdm.org/dmidi/Risk_Attitude.html Risk attitude is formally modeled as the shape of a decision maker's utility profile (see Weber, Blais, & Betz (2002) for an overview of different risk frameworks). Searches related to risk attitude of a decision maker what is risk attitude types of risk attitude risk attitude definition risk neutral