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1 – 2 of 2Sara Yousefi, Reza Farzipoor Saen and Seyed Shahrooz Seyedi Hosseininia
To manage cash flow in supply chains, the purpose of this paper is to propose inverse data envelopment analysis (DEA) model.
Abstract
Purpose
To manage cash flow in supply chains, the purpose of this paper is to propose inverse data envelopment analysis (DEA) model.
Design/methodology/approach
This paper develops an inverse range directional measure (RDM) model to deal with positive and negative values. The proposed model is developed to estimate input and output variations such that not only efficiency score of decision making unit (DMU) remains unchanged, but also efficiency score of other DMUs do not change.
Findings
Given that auto making industry deals with huge variety and volumes of parts, cash flow management is so important. In this paper, inverse RDM models are developed to manage cash flow in supply chains. For the first time, the authors propose inverse DEA models to deal with negative data. By applying the inverse DEA models, managers distinguish efficient DMUs from inefficient ones and devise appropriate strategies to increase efficiency score. Given results of inverse integrated RDM model, other combinations of cash flow strategies are proposed. The suggested strategies can be taken into account as novel strategies in cash flow management. Interesting point is that such strategies do not lead to changes in efficiency scores.
Originality/value
In this paper, inverse input and output-oriented RDM model is developed in presence of negative data. These models are applied in resource allocation and investment analysis problems. Also, inverse integrated RDM model is developed.
Details
Keywords
Reza Farzipoor Saen and Seyed Shahrooz Seyedi Hosseini Nia
The purpose of this paper is to develop an inverse network data envelopment analysis (INDEA) model to solve resource allocation problems.
Abstract
Purpose
The purpose of this paper is to develop an inverse network data envelopment analysis (INDEA) model to solve resource allocation problems.
Design/methodology/approach
The authors estimate inputs’ variations based on outputs so that the efficiencies of decision-making unit under evaluation (DMUo) and other decision-making units (DMUs) are constant.
Findings
The new INDEA model is developed to allocate resources such that inputs are not increased while efficiency scores of all DMUs remain constant. Furthermore, the authors obtain new combinations of inputs and outputs, together with a growth in efficiency score of DMUo such that efficiency scores of other DMUs are not changed. A case study is provided.
Originality/value
This paper proposes INDEA model to estimate inputs (outputs) without changing efficiency scores of DMUs.
Details