Proper modelling of industrial production systems with unintended outputs: a different perspective

Dyckhoff, Harald

doi:10.1007/s11123-023-00660-9

Cited by 3 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Assuming free disposability of an intermediate product implies that its overproduction is of no value for the system as a whole whereas other quantities of the same intermediate product are assigned positive values if they are maximised as process output of a production stage or minimised as process input of the subsequent stage in order to calculate efficiency scores of both stages (units, divisions). Thus, depending on its (produced or consumed) quantity, one and the same type of object may change its value from positive (good) to zero (neutral or free)or even negative (bad) if its disposal is costly (Dyckhoff, 2023). Such facts are widely ignored in the common literature on productivity and efficiency, and thus form an important research gap.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Network activity analysis for arbitrary production structures and technologies: Generic approach with application to network DEA

Dyckhoff,

Souren

2024

Preprint

Self Cite

View full text Add to dashboard Cite

Today, production usually takes place in complex networks. An important question is how the efficiency of the whole network is related to that of its units. Respective research on this topic has been strongly growing over the past decades, as a rule using methods of data envelopment analysis that are known as “network DEA”. However, there is a lack of theoretical foundation that allows clear statements to be made for arbitrary network structures and general, possibly non-convex or even discrete production technologies. This paper develops an activity analytic approach for modelling such general production networks and measuring their efficiency. Based on work of Koopmans and embedding it into a broader framework the approach is generic as it requires rather weak premises with regard to production technology and allows the network to be simply composed from its units as subsystems. It is shown that the relationship between the efficiency of a network activity and that of the subsystems and units depends strongly on the extent of which the individual production units are free to choose their input and output quantities, i.e. whether the network is loose or tied. Especially in cases where flows of intermediate products are constrained (instead of freely disposable), the explicit modelling of their overproduction helps to analyse their influence on efficiency scores. It is furthermore shown that calculating an overall efficiency score for a decision-making unit as average of individual scores of network units is inappropriate in any case.

show abstract

Section: Discussionmentioning

confidence: 99%

“…their desirability is not fixed but depends on their produced or consumed quantity (cf. Dyckhoff (2023) in this regard).…”

Section: Disposability Of Intermediate Productsmentioning

confidence: 90%

Network activity analysis for arbitrary production structures and technologies: Generic approach with application to network DEA

Dyckhoff,

Souren

2024

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Are important phenomena of joint production still being neglected by economic theory? A review of recent literature

Dyckhoff

Souren

2022

J Bus Econ

View full text Add to dashboard Cite

Joint production is a term with a long history in economics, encompassing a variety of ubiquitous production types that usually generate both main products as well as desirable and undesirable byproducts. However, studies in economic history show that important phenomena subsumed under this term were largely ignored by the theories of general economics and of business economics in the twentieth century. Our systematic, narrative literature review based on the Web of Science analyses the extent to which this and other terms corresponding to such phenomena have been taken up by researchers since then. Whereas the number of papers on undesirable outputs has soared, especially in the past decade, the economic literature regarding joint production and harmless byproducts is much smaller and hardly growing. This is in stark contrast to their relevance in practice, recorded in the non-economic literature. Harmful byproducts result from coupled production, as a rule. However, this important manifestation of joint production is usually not distinguished from other specific types. In German-language literature, coupled production is defined as a kind of (truly) joint production in which an intended product cannot be manufactured without an additional type of output under consideration. Our review reveals a lack of clarity, precision, and consistency in the use of established terms and concepts in English-language literature, that may lead to insufficient external validity of widely accepted models. Moreover, one gets the impression that academic disciplines concerned with business or general economics focus too much on problems that are currently of economic interest, while neglecting other issues that may be marginal today but are likely to be of critical importance in the near future.

show abstract

Performance assessment of waste sorting: Component-based approach to incorporate quality into data envelopment analysis

Dyckhoff,

Souren,

Clermont

2024

EURO Journal on Decision Processes

View full text Add to dashboard Cite

Proper modelling of industrial production systems with unintended outputs: a different perspective

Cited by 3 publications

References 36 publications

Network activity analysis for arbitrary production structures and technologies: Generic approach with application to network DEA

Network activity analysis for arbitrary production structures and technologies: Generic approach with application to network DEA

Are important phenomena of joint production still being neglected by economic theory? A review of recent literature

Performance assessment of waste sorting: Component-based approach to incorporate quality into data envelopment analysis

Contact Info

Product

Resources

About