205 research outputs found
The consumer’s demand functions defined to study contingent consumption plans. Summarized probability distributions: a mathematical application to contingent consumption choices
Given two probability distributions expressing returns on two single risky assets of a portfolio, we innovatively define two consumer’s demand functions connected with two
contingent consumption plans. This thing is possible whenever we coherently summarize every probability distribution being chosen by the consumer. Since prevision choices are consumption choices being made by the consumer inside of a metric space, we show that prevision choices can be studied by means of the standard economic model of consumer behavior. Such a model implies that we consider all coherent previsions of a joint distribution. They are decomposed inside of a metric space. Such a space coincides with the consumer’s consumption space. In this paper, we do not consider a joint distribution only. It follows that we innovatively define a stand-alone and double risky asset. Different summary measures of it characterizing consumption choices being made by the consumer can then be studied inside of a linear space over ℝ. We show that it is possible to obtain different summary measures of probability distributions by using two different quadratic metrics.
In this paper, our results are based on a particular approach to the origin of the variability of probability distributions. We realize that it is not standardized, but it always depends on the state of information and knowledge of the consumer
Tensors Associated with Mean Quadratic Differences Explaining the Riskiness of Portfolios of Financial Assets
Bound choices such as portfolio choices are studied in an aggregate fashion using an
extension of the notion of barycenter of masses. This paper answers the question of whether such an
extension is a natural fashion of studying bound choices or not. Given n risky assets, the question of
why it is appropriate to treat only two risky assets at a time inside the budget set of the decision-maker
is handled in this paper. Two risky assets are two goods. They are two marginal goods. The question
of why they always give rise to a joint good inside the budget set of the decision-maker is addressed
by this research work. A single risky asset is viewed as a double one using four nonparametric joint
distributions of probability. The variability of a joint distribution of probability always depends on
the state of information and knowledge associated with a given decision-maker. For this reason, two
variability tensors are defined to identify the riskiness of the same risky asset. A multilinear version
of the Sharpe ratio is shown. It is based on tensors. After computing the expected return on an n-risky
asset portfolio, its riskiness is obtained using mean quadratic differences developed through tensor
Aggregate Bound Choices about Random and Nonrandom Goods Studied via a Nonlinear Analysis
In this paper, bound choices are made after summarizing a finite number of alternatives.
This means that each choice is always the barycenter of masses distributed over a finite set of
alternatives. More than two marginal goods at a time are not handled. This is because a quadratic
metric is used. In our models, two marginal goods give rise to a joint good, so aggregate bound
choices are shown. The variability of choice for two marginal goods that are the components of a
multiple good is studied. The weak axiom of revealed preference is checked and mean quadratic
differences connected with multiple goods are proposed. In this paper, many differences from vast
majority of current research about choices and preferences appear. First of all, conditions of certainty
are viewed to be as an extreme simplification. In fact, in almost all circumstances, and at all times, we
all find ourselves in a state of uncertainty. Secondly, the two notions, probability and utility, on which
the correct criterion of decision-making depends, are treated inside linear spaces over R having a
different dimension in accordance with the pure subjectivistic point of vie
Non-parametric probability distributions embedded inside of a linear space provided with a quadratic metric
There exist uncertain situations in which a random event is not a measurable set, but it is a point of a
linear space inside of which it is possible to study different random quantities characterized by non-parametric
probability distributions. We show that if an event is not a measurable set then it is contained in a closed
structure which is not a σ-algebra but it is a linear space over R. We think of probability as being a mass. It is
really a mass with respect to problems of statistical sampling. It is a mass with respect to problems of social
sciences. In particular, it is a mass with regard to economic situations studied by means of the subjective notion
of utility. We are able to decompose a random quantity meant as a geometric entity inside of a metric space.
It is also possible to decompose its prevision and variance inside of it. We show a quadratic metric in order
to obtain the variance of a random quantity. The origin of the notion of variability is not standardized within
this context. It always depends on the state of information and knowledge of an individual. We study different
intrinsic properties of non-parametric probability distributions as well as of probabilistic indices summarizing
them. We define the notion of α-distance between two non-parametric probability distributio
Strip Planarity Testing of Embedded Planar Graphs
In this paper we introduce and study the strip planarity testing problem,
which takes as an input a planar graph and a function and asks whether a planar drawing of exists
such that each edge is monotone in the -direction and, for any
with , it holds . The problem has strong
relationships with some of the most deeply studied variants of the planarity
testing problem, such as clustered planarity, upward planarity, and level
planarity. We show that the problem is polynomial-time solvable if has a
fixed planar embedding.Comment: 24 pages, 12 figures, extended version of 'Strip Planarity Testing'
(21st International Symposium on Graph Drawing, 2013
Bioelectrical impedance vector analysis (BIVA) to evaluate seasonal variations in body composition of elite soccer players
Optimal Morphs of Convex Drawings
We give an algorithm to compute a morph between any two convex drawings of
the same plane graph. The morph preserves the convexity of the drawing at any
time instant and moves each vertex along a piecewise linear curve with linear
complexity. The linear bound is asymptotically optimal in the worst case.Comment: To appear in SoCG 201
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