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convexity and efficient set characterization results on SD efficiency of a given portfolio relative to adiversified set of …
Persistent link: https://www.econbiz.de/10011256268
Many cooperative games, especially ones stemming from resource pooling in<br/>queuing or inventory systems, are based on situations in which each player is associated with a single attribute (a real number representing, say, a demand) and in which the cost to optimally serve any sum of attributes is...
Persistent link: https://www.econbiz.de/10011199229
The main purpose is to prove the supermodularity (convexity) property of a cooperative game arising from an economical …
Persistent link: https://www.econbiz.de/10009018940
In this note, we further develop the pathwise convexity approach introduced by Hu (1991) to prove consistency of …
Persistent link: https://www.econbiz.de/10009214864
In this paper we characterize the smallest production possibility set that contains a specified set of (input, output) combinations. In accordance with neoclassical production economics, this possibility set has convex projections into the input and output spaces (convex isoquants), and it...
Persistent link: https://www.econbiz.de/10009218096
equivalent to the initial unconstrained estimate if the regression function is in fact convex. If convexity is not present the …
Persistent link: https://www.econbiz.de/10009219821
In this paper, a method for estimating monotone, convex and log-concave densities is proposed. The estimation procedure consists of an unconstrained kernel estimator which is modi?ed in a second step with respect to the desired shape constraint by using monotone rearrangements. It is shown that...
Persistent link: https://www.econbiz.de/10009219822
In this paper we are concerned with shape restricted estimation in inverse regression problems with convolution-type operator. We use increasing rearrangements to compute increasingand convex estimates from an (in principle arbitrary) unconstrained estimate of the unknown regression function. An...
Persistent link: https://www.econbiz.de/10009219843
The Bertrand Oligopoly situation with Shubik's demand functions is modelled as a cooperative TU game. For that purpose two optimization problems are solved to arrive at the description of the worth of any coalition in the so-called Bertrand Oligopoly Game. Under certain circumstances, this...
Persistent link: https://www.econbiz.de/10009220112
convexity of the flow-performance relationship varies with economic activity. We show that the effect is economically large and … implications of the time-varying convexity for the incentives of managers to alter strategically the risk of their portfolios. We …
Persistent link: https://www.econbiz.de/10009365425