Organizations can use the valuable tool of data envelopment analysis
(DEA) to make informed decisions on developing successful strategies,
setting specific goals, and identifying underperforming activities to
improve the output or outcome of performance measurement.
Selasa, 03 September 2013
Minggu, 01 September 2013
Pengantar Umum DEA
DEA (Data Envelopment Analysis) is the optimization method of
mathematical programming to generalize the Farrell(1957) single-input/
single-output technical efficiency measure to the multiple-input/
multiple-output case by constructing a relative efficiency score as the
ratio of a single virtual output to a single virtual input. Thus DEA
become a new tool in operational research for measuring technical
efficiency. It originally was developed by Charnes, Cooper, Rhodes(1978)
with CRS and was extended by Banker, Charnes, Cooper(1984) to include
variable returns to scale. So the basic DEA models are known as CCR and
BCC.
Since 1978 over 1000 articles, books and dissertation have been
published and DEA has rapidly extended to returns to scale, dummy or
categorical variables, discretionary and non-discretionary variables,
incorporating value judgments, longitudinal analysis, weight
restrictions, stochastic DEA, non-parametric Malmquist indices,
technical change in DEA and many other topics.
Up to now the DEA measure
has been used to evaluate and compare educational departments (schools,
colleges and universities), health care (hospitals, clinics) prisons,
agricultural production, banking, armed forces, sports, market research,
transportation (highway maintenance), courts, benchmarking, index
number construction and many other applications.At the moment
researchers follow wide ranges of DEA and related topics.
Selasa, 13 Agustus 2013
IN-HOUSE TRAINING DAN KONSULTASI DEA UNTUK KORPORASI
PENDAHULUAN
Data Envelopment Analysis pertama kali
diperkenalkan oleh Charnes, Cooper dan Rhodes pada tahun 1978 dan 1979.
Semenjak itu pendekatan dengan menggunakan DEA ini banyak digunakan di dalam
riset-riset operasional dan ilmu manajemen. Pendekatan DEA ini lebih menekankan
kepada pendekatan yang berorientasi kepada tugas dan lebih difokuskan kepada
tugas yang penting, yaitu mengevaluasi kinerja dari unit pembuat keputusan/UPK
(decision making units). Semenjak tahun 1980an, pendekatan ini
banyak digunakan untuk mengukur tingkat efisiensi dari industri perbankan
secara nasional.
DEA merupakan suatu teknik program linier yang
digunakan untuk mengevaluasi bagaimana suatu proses pengambilan keputusan dalam
suatu unit beroperasi secara relatif dengan unit lain dalam sampel. Selanjutnya
proses tersebut akan membentuk suatu garis frontier yang terbentuk dari
unit-unit yang efisien yang kemudian dibandingkan dengan unit yang tidak
efisien untuk menghasilkan nilai efisiensinya masing-masing.
Karena pentingnya metode riset ini, maka SMART
CONSULTING bekerjasama dengan pihak manapun untuk mengadakan pelatihan selama 2
hari dalam rangka memenuhi kebutuhan para akademisi maupun praktisi yang hendak
menggunakan metode DEA.
Rabu, 07 Agustus 2013
BOOK: DEA, Theory and Techniques for Economics and Operations Research, SUBHASH C. RAY
-
By
Subhash C. Ray
University of Connecticut
-
Publisher: Cambridge University PressPrint Publication Year:2004Online Publication Date:November 2009Online ISBN:9780511606731Hardback ISBN:9780521802567
Jumat, 02 Agustus 2013
BUKU: Data Envelopment Analysis: Returns-to-Scale Measurement
The paper provides an overview of the different approaches to measure
returns-to-scale (RTS) in Data Envelopment Analysis (DEA). DEA is a
promising approach allowing for analysis of efficiency and RTS in
certain fields where other concepts like regression analysis are not
applicable. Therefore, DEA literature and especially literature on RTS
measurement in DEA is rapidly growing.
Returns-to- scale and scale
efficiency can lead to significant and long-lasting implications for
management and politics. Furthermore, RTS classification can be used
to decide on mergers and acquisitions. Following the description of
the most common DEA models and their technology different approaches
to measure RTS are described and advantages and disadvantages are
elaborated.
The approaches are subdivided in qualitative and
quantitative approaches and RTS measurement in cost-based and non-
radial models. Additionally, sensitivity analysis for RTS measurement
is being dealt with. Finally, an empirical application is provided to
illustrate RTS measurement approaches discussed in the paper.
Kamis, 01 Agustus 2013
Analisis Perbandingan Tingkat Efisiensi BMT Kota Tasikmalaya Periode 2008-2012 dengan Pendekatan Two Stage Data Envelopment Analysis
Oleh: Asri Prihastuti
This
study measures the comparative efficiency of BMT Tasikmalaya during the period
2008-2012. The method used is Two Stage DEA with the intermediation approach.
The first stage of measuring the efficiency of each BMT using DEA. Input
variables used were total deposit, equity and total labour. While the variables
output is total financing and operating income. The second stage determines factors
influencing the efficiency of BMT using Tobit Method. The variables used were BOPO,
ROA (Return on Equity) and EQAS.
The results show that the overall
efficiency of BMT in the year 2008 reached 0.88 and the next year (2009) to
2012 increased significantly to reach 0.96. While the level of technical
efficiency has increased by fluctuations in 2008-2012. Means that the management
of the financial operations of BMT during 2008-2012 is relatively inefficient.
The main cause of inefficiency in the output-oriented measure is operating
income which can be increasing by 59.96%. Tobit results show that BOPO and ROE has
statistically significant positive impact on overall efficiency of BMT
Tasikmalaya. While the power of capital (CAR) has no significant positive
impact on the efficiency of BMT Tasikmalaya
Keywords:
Data Envelopment Analysis (DEA), Efficiency, Baitul Mal wa Tamwil
Rabu, 17 Juli 2013
BUKU: Mining Data Envelopment Analysis using Clustering Approach: for Heterogeneous Decision Making Units
This book integrates two important fields of information technology,
data mining and data envelopment analysis (DEA), to provide a new tool
for measuring the performance of decision making units (DMU). Many
investigations have dealt with the DEA models, but few have focused on
heterogeneous DMUs, outlier detection, and scalability over large data
sets.
In this book, a comprehensive model is presented. A constraint
based clustering method is introduced for early detection of outliers
to evaluate the performance scores of non homogeneous DMUs. The book
includes the different preprocessing stages used in applying different
approaches of data mining.
Along with the theory, an extensive analysis
in assessing the transportation system funding for school districts
in the state of North Dakota is provided. This book is originally a
Ph.D. dissertation at NDSU,Fargo, ND, USA.
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