Groups performance ranking based on inefficiency sharing

groups performance ranking based on inefficiency sharing

in the real world there are groups which composed of independent units. the conventional data envelopment analysis(dea) model treats groups as units, ignoring the operation of individual units within each group.the current paper, investigates parallel system network approach proposed by kao and modifies it. as modied kao' model is more eligible to recognize ecient groups, a new ranking m...

Quantifying Inefficiency of Fair Cost-Sharing Mechanisms for Sharing Economy

Sharing economy, a distributed peer-to-peer eco-nomic paradigm, gives rise to a variety of social interactionsfor economic reasons. One common distributed decision-makingprocess is the coalition formation to share certain replaceable re-sources collaboratively, for example, sharing hotel rooms amongtravelers, sharing taxi-rides among passengers, and sharingregular passes...

Ranking Classi cation Algorithms Based on Relevant Performance Information

Given the wide variety of available classiication algorithms and the volume of data today's organizations need to analyze, the selection of the right algorithm to use on a new problem is an important issue. In this paper we present zooming, a technique that, for a given dataset, selects relevant past performance information. The selection process is based on the distance between the dataset at ...

Ranking stochastic efficient DMUs based on reliability

Fundamental Functor Based on Hypergroups and Groups

The purpose of this paper is to compute of fundamental relations of hypergroups. In this regards first we study some basic properties of fundamental relation of hypergroups, then we show that any given group is isomorphic to the fundamental group of a nontrivial hypergroup. Finally we study the connections between categories of hypergroups and groups via the fundam...

Does Higher Cost Inefficiency Imply Higher Profit Inefficiency? - Evidence on Inefficiency and Ownership of German Hospitals

This paper investigates cost and profit efficiency of German hospitals. More specifically, it deals with the question how hospital efficiency varies with ownership, patient structure, and other exogenous factors, which are neither inputs nor outputs of the production process. We conduct a Stochastic Frontier Analysis (SFA) on a multifaceted administrative German dataset combined with the balanc...