BAM: a bounded adjusted measure of efficiency for use with bounded additive models

Cooper, W. W.; Pastor, Jesús T.; Borrás, Fernando; Aparicio, Juan; Pastor, Diego

doi:10.1007/s11123-010-0190-2

Cited by 136 publications

(63 citation statements)

References 16 publications

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“…Moreover, BAM offers us a balanced efficiency score, as explained in Cooper et al (2011). Finally, and in order to capture the productivity regress or progress for our three-season database, without creating infeasibilities, we have resorted to the biennial Malmquist index.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, a new efficiency measure was proposed by Cooper et al (2011). It is known as BAM (Bounded Adjusted Measure) and its def inition is based on a modif ication of the additive model, known as the range-bounded additive model.…”

Section: Model Specificationmentioning

confidence: 99%

“…For the variable returns to scale case, we simply add the convexity constraint over the set of lambda's, i.e., Σ j∈E λ j = 1 and realize, as a consequence, that the two sets of bound can be deleted (see Cooper et al, 2011).…”

Section: Efficiency Of the Spanish Designations Of Origin 297mentioning

confidence: 99%

“…Resorting to the BAM measure is recommended because it is defined for any returns to scale rangebounded model and has interesting properties such as: (i) it accounts for all types of inefficiencies; (ii) it is units invariant, which makes the corresponding linear programming computations well-conditioned; (iii) it is a measure in the range [0,1], with 1 being the score of any efficient unit and 0 the score of any fully inefficient unit; (iv) in the VRS case, its efficiency scores are balanced, in between the radial scores and the Slack Based Measure (SBM) scores (Pastor et al, 1999;Tone, 2001;Cooper et al, 2011). In some sense, the BAM measure incorporates all types of inefficiencies, radial and not radial, but in a way that is smoother than the SBM measure does.…”

Section: Efficiency Of the Spanish Designations Of Origin 297mentioning

confidence: 99%

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Efficiency analysis of the designations of origin in the Spanish wine sector

Vidal¹,

Pastor

Pastor³

2013

Span. j. agric. res.

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Although Spain has the largest cultivated vineyard area in the world, it is not the largest wine producer; it is third after Italy and France. With respect to exports, Spain is second. In order to increase wine sales, the offer must guarantee its quality. Since the 2008 European Union Commission Regulation on wine markets (OJ, 2008), quality is guaranteed in Spain for the Protected Designation of Origins (PDOs). In Spain, the number of PDOs has increased each year as well as the land associated with them. In the [2008][2009] season, 60% of the land with grapes belonged to PDOs, while in the 2009-2010 season, the percentage increased to 66.2%. Moreover, the production of quality wines is associated mainly to PDOs. Hence, the study of PDOs sheds light on the production of quality wines, a sector that is growing from year to year, being relevant to analyze the performance of such PDOs, in order to learn the main features of the best ones.To be classified as a DO in Spain, a PDO additionally needs to have the recognition as a quality wine with geographical indication for at least five years. We are going to analyze a subset of 34 DOs, covering a 59.3% of the wine surface of the whole set of Spanish PDOs and being the largest subset with available consistent data. We will evaluate their efficiency resorting to DEA (Data Envelopment Analysis), a non-parametric technique that solves a linear programming problem for each unit being rated.The efficiency literature related to the wine sector has analyzed farms, cooperatives, firms and agrifood sectors. Farms and cooperatives account for most of the specialized papers, starting with Townsend et al. (1998) AbstractThe wine Common Market Organisation has established two concepts for recognizing the quality of wines in the European Union (EU). The first corresponds to the so-called Protected Designation of Origin (PDO), and the second to the Protected Geographical Indication (PGI). The set of Spanish PDOs includes the subset of Spanish DOs (Designation of Origin), which have been recognized as quality wines by Spanish authorities since 1932. Spain accounts for 67 DOs but, due to a lack of data, only 34 of them are suitable for carrying out our analysis. We will analyze the efficiency of this subset for the 2008, 2009 and 2010 seasons resorting to Data Envelopment Analysis (DEA) and using a new additive based efficiency measure known as BAM (Bounded Adjusted Measure). Since we are using panel data, we will also evaluate the productivity associated with this data set resorting to Malmquist indexes. Our results show that the efficiency behavior of the subset of Spanish DOs is uniform over the time periods analyzed and that productivity experiments only minor and irrelevant changes. They also show that three DOs are in a very good competitive position while another three DOs are in a very bad position. We end up suggesting some economic reasons for explaining these results.

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Section: Discussionmentioning

confidence: 99%

Section: Model Specificationmentioning

confidence: 99%

Section: Efficiency Of the Spanish Designations Of Origin 297mentioning

confidence: 99%

Section: Efficiency Of the Spanish Designations Of Origin 297mentioning

confidence: 99%

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Efficiency analysis of the designations of origin in the Spanish wine sector

Vidal¹,

Pastor

Pastor³

2013

Span. j. agric. res.

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“…In this regard, we would like to highlight, first of all, the work carried out by Vidal et al (2014) where the technical efficiency of virgin olive oil PDOs in the 2008-2010 triennium is analyzed, using Data Envelopment Analysis (DEA) models, particularly the BAM (Bounded Adjusted Measure) of Cooper et al (2011b), which allows all possible sources of technical inefficiency to be considered. On the other hand, and in the specific area of productivity, Vidal et al (2015) studied changes in the productivity of these PDOs in the 2008-2013 period by means of global frontiers for each pair of periods analyzed (using the Biennial Malmquist index of Pastor et al, 2011, and a radial model with output orientation).…”

Section: Data Envelopment Analysis Distance Functions and Pareto-koomentioning

confidence: 99%

Changes in productivity in the virgin olive oil sector: An application to Protected Designations of Origin in Spain

Aparicio

Monge

Ortíz

et al. 2016

Span. j. agric. res.

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to the population´s growing concerns related to healthy aspects of food, there is also a growing interest taken in the origin or provenance of products as a source of information and significance in the sale of products and brands (Brugarolas et al., 2010). Without a doubt, one of the most successful formulas that agri-food operators have when it comes to competing in increasingly global markets, consists of emphasising all those aspects related to origin or provenance of products through different figures of protection. These figures are the Protected Designations of Origin (PDOs) and the Protected Geographical Indications (PGIs), both RESEARCH ARTICLE OPEN ACCESS AbstractVirgin olive oil is a key ingredient of the renowned Mediterranean diet. In this context, the main objective of this study was to estimate and decompose productivity change for Protected Designations of Origin (PDOs) in the Spanish virgin olive oil sector for the period 2008-2013. To this end, we introduced a Luenberger-type indicator based on a specific weighted additive model in Data Envelopment Analysis (DEA), which, in contrast to previous studies, captured all sources of inefficiency and avoided infeasibilities. Regarding the results, we found a reduction in productivity, in average terms, in the first periods analyzed (-0.12 and -1.65), followed by an improvement (0.79 and 0.54), that in the last period analyzed (2012)(2013), however, returned to adverse figures (-0.47). In Spain, where foreign competition is weak, the most productive PDOs were those with an important number of oil mills and packaging/marketing companies such as "Montes de Toledo" and "Siurana"; productivity changes were mainly the consequence of downwards and upwards of the frontier of the technology over time. These changes were explained, to a certain extent, by the evolution of the economic crisis; and the productivity of the sector declined, in general, from 2008 to 2010, improving thereafter except for the last registered period, 2012-2013, where expectations for market recovery exceeded actual sales.

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The impact of globalization on comprehensive environmental efficiency and its sub‐stage efficiencies: An adjusted range adjusted measure network data envelopment analysis model approach

Huang

2023

Env Prog and Sustain Energy

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Globalization is a worldwide trend, and environmental governance requires global cooperation. There are environmental issues caused by globalization, such as "environmental justice" and "externalization of cost." However, several key questions remain about the impact of globalization on the environment. This article attempts to decompose the comprehensive environmental efficiency and analyze their inner relationship its determinants. This study adopts range adjusted measure network data envelopment analysis (DEA) model to measure the overall efficiency and decompose comprehensive efficiency into two stages and investigate the interrelationship among them, based on the data from 30 cities along the Yangtze River. This can reveal the "black box" of the DEA and the interrelationship between each stage. The panel quantile method is adopted to analyze the impact of influencing factors, especially globalization, on efficiency. This article creatively builds the in-depth openness index to measure the tendency of indepth openness. The following findings are identified: (1) Among sub-stages, environmental governance efficiency plays a more significant role in comprehensive environmental efficiency. (2) Foreign direct investment, urbanization, and industrial structure negatively influence efficiency, while the degree of openness, per capita GDP, and population density are positive determinants. (3) With the decrease of the HUANG index, the impact of globalization on the local environment shifted from supporting the pollution halo hypothesis toward supporting the pollution haven hypothesis. (4) Sustainability with harmony between humans and nature is recommended and can be achieved. The result of this study can help policymakers to find an effective way to achieve sustainability and improve the environmental efficiency effectively.

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BAM: a bounded adjusted measure of efficiency for use with bounded additive models

Abstract: DEA, Additive models, Efficiency measures, Returns to scale, Bounded additive models, C51, C61,

Cited by 136 publications

References 16 publications

Efficiency analysis of the designations of origin in the Spanish wine sector

Efficiency analysis of the designations of origin in the Spanish wine sector

Changes in productivity in the virgin olive oil sector: An application to Protected Designations of Origin in Spain

The impact of globalization on comprehensive environmental efficiency and its sub‐stage efficiencies: An adjusted range adjusted measure network data envelopment analysis model approach

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